"Poker Face" is a song written by Lady Gaga, and producer RedOne in January 2008 from her album, The Fame. It serves as the second single from the album, and was released in late 2008 for certain markets, and in early 2009 for the rest of the world. The song is an uptempo dance song, following in the footsteps of her previous single, "Just Dance", but has a darker musical tone. It peaked at #1 on the Billboard Hot 100, making it Lady Gaga's second number one hit, and also made two consevutives number ones in a row after Just Dance.