arts and entertaiment: Beyoncé - Upgrade U (feat. Jay-Z)

"Upgrade U" is a song by American R&B singer Beyoncé Knowles, featuring vocals by hip hop artist Jay-Z, from her second solo album, B'Day. Released in the United States only as a promo single, the song received mixed reviews from critics and reached #59 on the U.S. Billboard Hot 100 chart and #11 on the U.S. Billboard Hot R&B/Hip-Hop Songs chart.