Answer by taking a quote from the following article:

Studdard was born in Frankfurt, Germany, to American parents, while his father was stationed there with the U.S. Army, and grew up in Birmingham, Alabama. The youngest son of two teachers, at the age of three, he sang for the first time at the Rising Star Baptist Church in his hometown of Birmingham. He continued singing gospel in church, performing solos as a child while his mother sang in the local choir. While at Huffman High School, he played football for which he received a scholarship to Alabama A&M University.

Studdard joined the cast of fifteenth season of the NBC weight loss competition show The Biggest Loser, and was credited as its first ever celebrity contestant. At 6'3 and 462 pounds, Studdard had the highest starting weight and BMI of the entire cast. A member of the show's Red Team, Studdard was first eliminated in the fourth week after he failed to make his weight loss goal. However, because opposing coach Jillian Michaels had given her team caffeine pills in violation of the rules, Studdard's elimination was voided and he returned before once again being eliminated during the competition's eighth week.  At the show's finale on February 4, 2014 (which coincided with the release of Studdard's newest album, Unconditional Love), it was revealed that he had lost a total of 119 pounds for an ending weight of 343 pounds. Studdard credited the weight loss for improving his ability to perform onstage. During the finale, Studdard also performed his new album's lead single, "Meant to Be", accompanied by the song's cowriter and producer, David Foster, on piano.  Unconditional Love is Studdard's sixth studio album and first with his new label, Verve Records. Foster, who has won 16 Grammy Awards, was the executive producer of the disc, which primarily consists of covers of love songs along with two originals, including "Meant to Be". Studdard has called it "the album that everybody expected from me when I won American Idol." The album features collaborations with Stevie Wonder, Lalah Hathaway, and Eric Benet, and includes covers of songs originally performed by artists such as Paul McCartney, Donny Hathaway, Bonnie Raitt, Marvin Gaye, and Peabo Bryson. Since its release, the album has received some of Studdard's best reviews of his career. According to critics, the album "finds Studdard at the top of his game vocally" and he hits his stride, "exuding grace, confidence and class" as he successfully positions himself as a "stylish crooner." Unconditional Love debuted at #46 on the Billboard 200 and #7 on Billboard's R&B Albums chart.  Studdard prepared for a 2014 tour with his collaborator, Lalah Hathaway, and had planned on releasing a Christmas album at the end of the year.

Anything else notable about his appearance on Biggest Loser?
Studdard credited the weight loss for improving his ability to perform onstage.