"Poker Face" is a song by American singer Lady Gaga from her debut studio album, The Fame (2008). It was released on September 23, 2008, as the album's second single. It is a synth-pop song in the key of G♯ minor, following in the footsteps of her previous single "Just Dance", but with a darker musical tone. The main idea behind the song is bisexuality and was a tribute by Gaga to her rock and roll boyfriends. The song's lyrics feature various sexual innuendos.