"Up & Down (In & Out)" is a song by Canadian singer Deborah Cox. It was written by Cox, Alex Richbourg, James Wright, Jimmy Jam, and Terry Lewis for her third studio album The Morning After (2002), with production helmed by Jam, Lewis, Wright and Godson. The song, along with a slightly remixed version featuring additional vocals from rapper Jadakiss, was released as the album's lead single in 2002, reaching number 23 on the BillboardAdult R&B Songs chart.[1]