LADY GAGA HOPES TO RELEASE ARTPOP THIS SUMMER:

Lady Gaga's upcoming release, ARTPOP, is expected to drop this summer, according to fashion designer Stevie Boi. "It's a Blessing to work with the Queen @LadyGaga ArtPop this summer! Get ready Monsterz," tweeted the fashion designer, who has worked with Gaga in the past.

FUN., WEEZER AND MORE TO PLAY OTTAWA'S RBC BLUESFEST:

Rush, Weezer, Passion Pit and fun. have been added to the lineup of Ottawa's RBC Royal Bank Bluesfest. Bjork, Alex Clare, Tegan and Sara and She & Him will also perform. Clare kicks off the festival on July 4, followed by She & Him on July 5. Fun. and Tegan and Sara take the stage on July 7, while Rush will rock it on July 8.

JUSTIN BIEBER COLLAPSES ON-STAGE IN LONDON:

His rep, Scooter Braun, says, "Justin got very light of breath. The whole show he's been complaining, and he's backstage with the EMTs and the doctor. They're telling him that they want him to go see somebody and see what's going on with his lungs." Bieber Tweeted: ''getting better. thanks for everyone pulling me thru tonight. best fans in the world. figuring out what happened. thanks for the love''. The "Biebs" tweeted a photo of himself shirtless and recovering in the hospital..see below.