"Lonely" (also known as "Mr. Lonely") is a song by Senegalese-American R&B and hip hop singer Akon; it appears on his debut album, Trouble. The single was released in 2005 and was his first worldwide hit. It reached number one in several countries, including in the United Kingdom and Germany (where it stayed there for eight weeks), and Australia. It was also highly popular in France where it reached number two, and in the United States when it peaked at #4. An edited version was on Radio Disney and on Radio Disney Jams, Vol. 8.