"Nobody's Supposed to Be Here" is a single written by Montell Jordan and Anthony "Shep" Crawford. Canadian R&B singer Deborah Cox released the song in 1998 from her second album One Wish.

The song reached the Top 40 of the Billboard Hot 100 on September 29, 1998. It then peaked at number two on the Billboard Hot 100 on November 24, 1998 and spent eight weeks there, (kept from the top spot first by 'I'm Your Angel' by R. Kelly and Celine Dion for six weeks and then by 'Have You Ever?' by Brandy for the remaining two) making it one of the longest stays at No. 2 for any single in the chart's history and the highest-peaking single of Cox's career (the next single, "We Can't Be Friends", was her only other top ten hit on the chart, peaking at No. 8). It received comparatively little airplay on mainstream Top 40 radio, however, as it peaked only at No. 30 on Radio & Records magazine's CHR/Pop chart the week of February 19 and 26, 1999.

"Nobody's Supposed To Be Here" also peaked at No. 1 on the Billboard Hot R&B/Hip-Hop Songs chart on October 27, 1998, where it remained for a record-breaking 14 weeks. This record was tied in 2005 by Mariah Carey's "We Belong Together" and broken in 2006 by Mary J. Blige's "Be Without You", which spent 15 weeks at No. 1.

...
Wikipedia