During 2006 Elitserien finals against the Frölunda Indians, Frölunda's fans started to chant "Kåbergs flickvän heter Per Ledin" ("Kåberg's girlfriend is named Per Ledin). The Bruise Brothers responded by posing for a photo after winning the final, covered in gold paint, presenting the cup and Ledin kissing Kåberg's chin.
Ledin started his professional career at the Swedish club IF Björklöven in the 1997–98 season. That season Björklöven played in the second highest league in Sweden, HockeyAllsvenskan, and was promoted to the highest league, Elitserien. The following season Björklöven was relegated from Elitserien and after another season with Björklöven in HockeyAllsvenskan, Ledin signed with the Baton Rouge Kingfish in the ECHL. In the middle of the season he returned to Sweden and signed with the Elitserien club Luleå HF. After a few disappointing seasons with Luleå, Ledin got his big breakthrough during the 2004–05 season when he scored 16 goals and 20 assists in 46 games during the regular season. This made the other clubs in Elitseriens interested and in the summer of 2005 he signed for the six times Swedish Champions Färjestads BK. With Ledin's first season with Färjestad the club won its seventh Swedish Championship.
In 2006, Ledin signed a contract with the Columbus Blue Jackets of the NHL, but the contract was rejected by the league due to errors in the contract. Instead, he continued and signed a three-year contract with HV71 in Elitserien. After fulfilling one season with HV71, winning the Swedish Championship, he broke his contract for play in the NHL. He signed a one-year contract with the Colorado Avalanche.
Ledin was a member of the gold medal winning Swedish men's national inline hockey team at the 2007 Men's World Inline Hockey Championships.
|2000–01||Baton Rouge Kingfish||ECHL||27||4||8||12||37||--||--||--||--||--|
Statistics as of the end of SEL season 2007–08