"Jealous" is a song performed by American recording artist Nick Jonas for his eponymous second studio album. It was released on September 8, 2014, by Island Records as the second single from the record. It was written by Jonas, Sir Nolan, Simon Wilcox, and the song was produced later by Sir Nolan. "Jealous" has peaked at No. 7 on the US Billboard Hot 100, consequently becoming Jonas's highest charting single and highest selling single with 2 million copies sold in the United States to date. The single has also peaked at No. 1 on the US Hot Dance Club Songs chart "Jealous" has also peaked at No. 2 on US Billboard Mainstream Top 40 for five weeks, and also at No. 10 on the Billboard Canadian Hot 100. "Jealous" was also a minor hit in Australia, reaching No. 15 on the ARIA Charts, and also in Ireland, where it peaked at No. 28. It peaked at No. 8 in New Zealand. The song had its biggest success in the United Kingdom, where it peaked at No. 2 on the UK Singles Chart.