"Upgrade U" is a song by American singer and songwriter Beyoncé from her second studio album "B'Day" (2006). The song features additional vocals from American rapper Jay-Z. It was composed by Swizz Beatz, Cameron Wallace, Beyoncé, MK, Makeba, Sean Garrett, Angela Beyincé, Jay-Z, Willie Clarke, Clarence Reid, and Beyoncé's sister, Solange. Columbia Records released "Upgrade U" as a promotional single on 8 October 2006 in the United States only. "Upgrade U" draws from the genres of hip hop and contemporary R&B. The concept of the song is that of a woman describing herself as the key to upgrading a man's lifestyle.