"Off to see the ladies of @theviewtv. Barbara Walters just tweeted me and told me to drop by. Done."

-Jimmy Fallon Tweets

Whitney Houston was hospitalized in Paris on Tuesday for an upper respiratory infection, causing the singer to postpone three of her European concerts.

"With great disappointment, Whitney Houston has postponed her first three concerts in the UK due to illness," a rep at RCA said.

"Doctors visited Whitney late last night in Paris and confirmed that she was suffering from an upper respiratory infection. Upon medical advice Whitney has been advised that she cannot perform to allow her time to recover."

The shows scheduled in Manchester for Thursday and Friday have been pushed back to June 16 and 17, respectively, and the concert in Glasgow has been rescheduled for May 1.

Feel better Whit!

Ryan Cabrera and Dion Roy have announced plans to perform aboard the NYC's The Jewel on Friday, April 23, and Poison Ivy is giving away tickets to a few lucky readers!

"You can tell by the energy around the show that it's going to be quite a night to remember," Roy tells us.

Click here to enter to win!

I spy in NY... 

Usher performing at P.C. Richard & Son Theater last Monday (top photo), Allstar Weekend arriving at a Degree-sponsored concert at The Angel Orensanz Foundation last Tuesday (middle photo), Cynthia Rowley with Katie Lee (formerly Joel) at the Cynthia Rowley for Roxy launch at CO-OP Barneys New York Thursday (bottom photo), She & Him playing a two-night stand at Bowery Ballroom last Monday, and Talib Kweli DJing at Union Square Ballroom Friday.

[Usher photo by Douglas Sonders/iheartradio.com]

[Cynthia Rowley/Katie Lee photo by Chance Yeh/Patrick McMullan Photography]

"I rode an elevator with a guy who was whistling the tune of 'this is the song that never ends'. Putting that on me? Come on dude.."

-Taylor Swift Tweets

Rihanna has announced a U.S. headlining arena tour with Ke$ha and rapper Nicki Minaj, kicking off July 2 in Seattle and closing out August 25 in Chicago.

The trek will mark the singer's first U.S. headlining tour, and she says she's pulling out all the stops.

"We've never done a tour to this capacity," Rihanna told AOL. "The production is unbelievable and the costumes, we just took it to a whole new level. We just keep growing, and this time it is a massive production that I cannot wait for." 

See you at MSG August 12!

» 7/2 - Seattle, WA @ White River Amphitheatre
» 7/4 - Vancouver, BC @ General Motors Place
» 7/6 - Calgary, AB @ Pengrowth Saddeldome
» 7/9 - Sacramento, CA @ ARCO Arena
» 7/10 - Mountain View, CA @ Shoreline Amphitheatre at Mountain View
» 7/14 - Albuquerque, NM @ Hard Rock Casino Albuquerque presents The Pavilion
» 7/15 - Denver, CO @ Comfort Dental Amphitheatre
» 7/17 - Las Vegas, NV @ Mandalay Bay Events Center
» 7/21 - Los Angeles, CA @ Staples Center
» 7/22 - Phoenix, AZ @ Cricket Wireless Pavilion
» 7/28 - Atlanta, GA @ Philips Arena
» 7/30 - Tampa, FL @ Ford Amphitheatre
» 7/31 - Miami, FL @ American Airlines Center
» 8/3 - Indianapolis, IN @ Verizon Wireless Music Center Indianapolis
» 8/5 - Toronto, ON @ Molson Canadian Amphitheatre
» 8/7 - Montreal, QC @ Bell Centre
» 8/8 - Boston, MA @ Comcast Center
» 8/11 - Uncasville, CT @ Mohegan Sun Arena
» 8/12 - New York, NY @ Madison Square Garden
» 8/15 - Wantagh, NY @ Nikon at Jones Beach Theater
» 8/18 - Camden, NJ @ Susquehanna Bank Center
» 8/20 - Bristow, VA @ Jiffy Lube Live
» 8/21 - Hershey, PA @ Hersheypark Stadium
» 8/22 - Detroit, MI @ DTE Energy Music Theatre
» 8/25 - Chicago, IL @ United Center

With just over a week before the release of their new record Year of the Black Rainbow, prog rockers Coheed and Cambria visited a handful of intimate venues - including Brooklyn's Music Hall of Williamsburg Wednesday night - to preview new material for fans.

"We wanted to celebrate the old, bring in the new with this Northeast stretch," singer Claudio Sanchez told the 500-something people in the audience, treating them to YOTBR tracks like "The Broken," "Far," "World of Lines," and recent single "Here We Are Juggernaut."

CoCa also ventured into their extensive past at the gig, playing fan favorites "A Favor House Atlantic," "Time Consumer," and an encore of "Welcome Home."

The band's next move is headlining a 30-date U.S. theatre tour with Circa Survive and Torche - so it was nice to see them perform in a quieter atmosphere!

Poison Ivy also had the privilege of hanging out with CoCa pre-show, where we witnessed a vocal warm-up that included the "Ra Ra Ah Ah Ah" intro to Lady Gaga's "Bad Romance"!

"When Claudio and I heard the first line, 'I want your ugly/I want your disease,' we knew it was going to be an awesome song," says a friend close to the band.

Sanchez laughed when we asked if Coheed would ever think of covering "Bad Romance" (Coachella, anyone?) - but he later inquired about Hayley Williams' rendition of the jam, making us think he's considering!

Could be amazing!

In the meantime, check out Coheed's performance of "Far" at Music Hall of Williamsburg Wednesday, below, along with snapshots of the night, above.

Lil Wayne has launched a website from prison titled Weezy Thanx You, in which he will communicate with fans during his year-long sentence.

"I want my fans to know I love you,” the rapper wrote in his first post Friday, entitled "Gone Til November."

"I want all of you to know that I appreciate all the mail I get, and this is my way of saying thank you."

The rapper also plans to update fans on his progress in his letters, noting that he will continue blogging for ESPN.com during the sentence, and has been spending his time working out and reading the bible.

"I read the Bible everyday," Weezy writes. "Jail didn’t make me find God, He’s always been there."

The rapper was sentenced to a year in prison following a weapons charge back in 2007. There are currently 213 days until Lil Wayne will be free.

"Road trip rule #34: Always brake for fried chicken."

-Padma Lakshmi Tweets

Jimmy Kimmel asked Americans to splash cold water on their unsuspecting, unconscious loved ones in honor of April Fools' Day - and the results were beyond hilarious!

Check out his YouTube collage, above.

Grammy Award-winning singer Estelle joined New York designer Rachel Roy Thursday to debut their jewelry line at Macy's Herald Square!

Roy made sure to have some of her fabulous designs on display (bottom photo), while Estelle entertained the crowd with a three-song set.

"Shoutout to Rachel Roy, who believed in me," Estelle told the crowd, before playing "Pretty Please," "Freak," and (what else?) "American Boy."

"This is my favorite song in the world," Estelle admitted.

Check out photos from the night above, including the lovely DJ Rashida on turntables (third photo), and a video of Estelle's "Pretty Please" performance, below.

I spy in NY... 

Whoopi Goldberg hosting a tribute to George Carlin at the New York Public Library last Wednesday (top photo), Kelly Bensimon hanging out at the Volkswagen Touareg Hybrid launch at the IAC Building Tuesday (middle photo), Miike Snow performing at Webster Hall Saturday night (bottom photo), Tracy Morgan doing a four-night stand at Caroline's on Broadway Thursday, and Erykah Badu performing a (semi) secret show at Good Units Saturday night.