In a performance that got social media buzzing, Katy Perry and Rebecca Black teamed up for a surprise duet of viral hit "Last ...

Katy Perry’s 2011 song "Last Friday Night (T.G.I.F)" from her third studio album, Teenage Dream, has debuted on US Spotify.

Katy Perry surprised the audience at her Los Angeles concert by bringing Rebecca Black on the stage for a special performance of Last Friday Night (T.G.I.F.).

NASA will livestream the launch Friday night of Crew-10, which will in part replace the Starliner astronauts at the International Space Station.

A National Weather Service meteorologist warns St. Louis of severe storms on Friday, likening them to past destructive tornadoes.

Katy Perry has reunited with Rebecca Black during a recent live show, and invited the singer to join her for the ‘Lifetimes’ tour. READ MORE: Rebecca Black on 14 years of ‘Friday’ and ...

The National Weather Service said it remains "quite concerned about the potential for severe thunderstorms" Friday evening and Friday night.