Starpulse — Katy Perry heated up the city today in a skin-tight red dress when she left her hotel to head over to the Ed Sullivan Theater for her performance on the "Late Show With David Letterman." Katy's new... more info

Idolator — Katy Perry will be performing songs from her new album Teenage Dream on the Late Show with David Letterman tonight, and as a gift to her fans (and anyone who likes to see her bounce around a stage in revealing outfits) on the day of her album release... more info

ET Online — Don't miss live streaming video of Katy Perry rocking out in concert from New York's Ed Sullivan Theater. The red hot Grammy winner is playing old faves as well as tunes from her new album Teenage Dream, in stores today. Right before ... more info

Mjsbigblog — FANTASIA ON THE RECORD FANTASIA-TASTIC: Early, early one-day retail reports have Fantasia Barrino’s third J/RCA album, Back to Me, exceeding expectations in the marketplace. The former American Idol winner has been in the news aft... more info

Reuters — NEW YORK (Reuters) - Singer Katy Perry wooed U.S. critics with her second major-label album release on Tuesday, packed with flirty, giggly pop songs, strong dance beats and plenty of "gurl-talk". more info

The Newsroom — Katy Perry shows off an old glamour shot of her when she was kid on Twitter. more info

Starpulse — Katy Perry's highly anticipated sophomore release, "Teenage Dream," is available today! Katy will be celebrating with her Live on Letterman event tonight at 8 ET/5PT where she will be live streami... more info

ET Online — Can you guess the celebrity in this photo flashback? It's none other than Katy Perry, who posted the pic via her Twitter, saying, "grandma brought this one outta the closet today! #glamourshots" Teenage Dream, Katy's new album, is out today... more info

Topix — Katy Perry's sugary-sweet presentation and perfectly manufactured sound don't equate to musical greatness in her new album, but do make for some enjoyable musical escapism. more info

Unreality Music — Okay, so we know times change, right? We know that petrol prices are fluctuating more than Louis Spence’s body; we know that teenage pregnancy in Britain is unprecedented; and we'know the p... more info