I Feel for You (album) title track, "I Feel for You" was a cover of a 1979 Prince track, featuring Grandmaster Melle Mel on the classic "Ch-ch-ch-chaka-chaka-chaka Khan" rap intro and Stevie Wonder on chromatic harmonica (and also a sample from one of his first hits, "Fingertips") and saw Khan embracing high-tech funk, rap and hip hop and stands as one of her best known songs and her biggest commercial hit, reaching number 3 on the US Pop chart (and becoming the "Billboard" number 5 best-selling song of the year in 1985), and topped the US R&B, Dance, and UK singles charts. The song earned
I Think I'm in Love with You the single debuted at number sixty-one on the issue dated June 25, 2000. In the next week peaked at number forty-one and stayed on the chart for twelve weeks. The single peaked at number three on the Ultratip chart of Belgium's Wallonia region, and number thirty-six on the Belgium Flanders Ultratop 50 chart. It also reached number thirty in Italy. "I Think I'm in Love with You" peaked at number thirty-one on the European Hot 100 Singles chart, as compiled by "Billboard". "I Think I'm in Love with You" was included on the set list of the Heat It Up