After playing college football for Shippensburg University, he was signed by the Pittsburgh Steelers as an undrafted free agent in 2005.

He was a four-sport athlete at Dover Area High School in York County, Pennsylvania, playing football, basketball, baseball and track.

[4] A Northeast Region finalist for the Harlon Hill Trophy given to the top player in NCAA Division II as a senior, Kuhn was selected to play in the 2005 Whataburger Cactus Bowl on January 7 as a Division II all-star for the North team.

In 2013, he was inducted into the Shippensburg University athletic hall of fame by his long time friend, roommate, and 3rd string safety Kevin Boyle.

He was released prior to the season, but on November 30 was assigned to the team's practice squad for the final five games.

[3] On October 6, 2006, he was selected in the 8th round of the Arena Football League's Expansion Draft by the New Orleans VooDoo.

In 2007, Kuhn was signed to the active roster of the Green Bay Packers on September 2, a day after being released by the Steelers.

He scored his first rushing touchdown on a one-yard run on November 24 against the New Orleans Saints to put the Packers up 7–0.

[3] In 2012, Kuhn played 14 games (missing two games with a hamstring injury) with three starts, rushing 23 times for 63 yards and tying his career high with 15 receptions for a career-high 148 yards while adding three special teams tackles.

In the NFC Wild Card game versus the Minnesota Vikings, he scored touchdowns on consecutive possessions, one via the ground and one on a pass.

[6] He gained national recognition in the season's finale versus the Chicago Bears to decide the NFC North championship and a berth in the playoffs.

However, Kuhn quickly shifted across the formation and made a cut block on Peppers, allowing Rodgers to escape and throw a game-winning touchdown pass to Randall Cobb.

Kuhn became a free agent after the 2013 season; however, on April 3, 2014, he signed a one-year contract with the Packers.

[12] During a Week 3 loss, Kuhn scored his first touchdown as a Saint on a 3-yard rush against the Atlanta Falcons.

[17] Kuhn's wife, Lindsey (Incorvati), is a former soccer player and sprinter on the track team at Shippensburg University.

Whenever Kuhn carried the ball, Packers' fans called out his surname "Kuuuuuuuuuuhhhhhhhhhhn," which was sometimes mistaken for booing.

The chant originated at Shippensburg each time he touched the ball, but Kuhn gained national fame after scoring three touchdowns in week 16 of 2010 against the New York Giants.

[1] In 2013, he co-starred in a national Campbell's Soup commercial with teammate Clay Matthews, with both in full Packers uniforms.