'Stronger': Jake Gyllenhaal's Powerful Role In Boston Marathon Bombing Film (First Look)
Katy Perry's new album, "Witness," is on pace to debut at No. 1, following her 96-hour livestream. The stream ended with a 50-minute concert in Los Angeles, where she changed the lyrics to new song "Swish Swish," which many believe is about Taylor Swift. Katy was raw and honest throughout the livestream, and Billboard Director Matt Medved shares his thoughts on the social experiment with Access Hollywood.