WATCH: Kevin McHale Woos Katy Perry in 'Last Friday Night' Music Video

"Glee" star Kevin McHale attempts to win Katy Perry's heart in her new music video, "Last Friday Night (TGIF)."

Cewebrity Rebecca Black also makes a cameo in the video, playing Fairy Godmother to the songstress by assisting in her one-night transformation from an unattractive nerd to a voluptuous babe.

"Last Friday Night (TGIF)" is just one of the many club-banging singles featured on Katy's album Teenage Dream, in stores now.