Stream: Katy Perry Celebrates Album Release With Concert

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 streaming a concert from the Ed Sullivan Theater in NYC.  After watching the event online here, tune in to her appearance on the Late Show With David Letterman at 11:35/10:35C.  She’ll also be rocking the outdoor stage at Rockefeller Plaza for TODAY’s Toyota Summer Concert Series on August 27th.