The Ready Set

As of July 2019, Witzigreuter has begun a new project, now using the name Onlychild. He has released six singles and a four-track EP under this name.

In 2012, Witzigreuter featured in an episode of Disney Channel's So Random!.

Pete Wentz signed Witzigreuter to his label Decaydance Records in 2009. After leaving Decaydance following his second album, he subsequently signed with labels Razor & Tie and Hopeless Records, releasing The Bad & The Better on the former and I Will Be Nothing Without Your Love on the latter. Following these albums, he begun to release music independently in 2018 with two extended plays: V1 and V2.

In 2007, Witzigreuter began making music independently under the name "The Ready Set." His first two albums Syntax and Bright Lights and Tantrum Castle were recorded in the basement of his childhood home. Initially uploading his music to Myspace, Witzigreuter then began performing his music live. His first performances took place at The Mocha Lounge in Fort Wayne, Indiana, a coffee shop where he worked. His performances evolved to that of a live band, and he began performing for music festivals. These included The Bamboozle and Bamboozle Left, the Bamboozle Roadshow, and the MTV VMA Tour. He also opened for bands like Boys Like Girls.

Jordan Mark Witzigreuter (born November 14, 1989), known professionally as OnlyChild and formerly as "The Ready Set", is an American singer-songwriter from Fort Wayne, Indiana, United States. He is the lead vocalist and sole member of the act, using a backup band while on tour. He has released five studio albums, Syntax and Bright Lights, Tantrum Castle, I'm Alive, I'm Dreaming, The Bad & The Better, and I Will Be Nothing Without Your Love, six extended plays and seven singles. He is best known for the commercially successful single "Love Like Woe" from his major label debut I'm Alive, I'm Dreaming.