Rumor has it that @LadyGaga will join Beyoncé, with whom she collaborated on "Telephone," onstage at her NYC show this summer. It will be Mama Monster's first major appearance onstage since canceling her Born This Way Ball tour in order to have hip surgery. The show is slated for the Barclays Center in Brooklyn on August 3 and is part of Beyoncé's The Mrs. Carter Show World Tour. Do you think Beyoncé and Gaga will collaborate again? —Maggie Pannacione 05.24.13 Read more at artistdirect.com/...