Katy Perry was left devastated after her headline set at Werchter Boutique was cancelled at the last minute. See details.

While it seems Katy Perry and Justin Trudeau are one of the most unexpected couples, they seem to work. However, insiders ...

The summer smash began a record run of five No. 1 hits from a single album.

Katy Perry brought California to Oxfordshire as she wowed with hit after hit during her headline set at Blenheim Palace ...

Katy Perry and Justin Trudeau may be meant to last. According to body language expert Darren Stanton, the duo looked all loved-up as they made their red carpet debut at the Tribeca Film Festival ...

Storming the stage in a shirt and tie number, Katy Perry deals a frenzied version of her hit California Girls to open her ...

Forbes contributors publish independent expert analyses and insights. Hugh McIntyre covers music, with a focus on the global charts. Katy Perry's Teenage Dream — one of the most successful pop albums ...

Triumphant Katy Perry is plotting a "revenge" pregnancy with new beau Justin Trudeau – less than a year after her decade-long romance with Orlando Bloom burned out, RadarOnline.com can reveal. "Katy's ...

The couple enjoyed a laid-back day in California.

Katy Perry and Justin Trudeau have taken their relationship to the red carpet, smiling and canoodling for the cameras at New York's Tribeca Film Festival on Monday evening.

Katy Perry took to social media to share a teaser for her new single, “Watch It Burn,” wielding a baseball The Katy Perry Mocked For Music Teaser: ‘Stuck In 2010’ first appeared on The Blast ...

The singer is giving fans a chance to win her archival 2008 Warped Tour and 2009 Hello Katy Tour outfits ...