One of the more famous Swedish pop singers, Tomas Ledin began singing backup vocals for ABBA. His 1982 single "Never Again" -- a duet with ABBA's Agnetha Fältskog -- became a big hit in his country, and he continued to storm the singles charts during the 1980s and '90s, spending ten weeks at number one with a 1990 effort. ~ John Bush, Rovi