Early years (2002–2011)

In 2002, Seaman got his first touring opportunity to play on the Vans Warped Tour, drumming for Lookout Records artist The Eyeliners.^[1]

In 2005, Seaman joined the post-hardcore band I Am Ghost,^[2] recording some tracks for their debut album, Lovers' Requiem, released in 2006.^[3] In April 2009 he joined the pop rock band The Bigger Lights,^[4] participating in two albums and an EP,^[5][6] leaving the band in May 2011. He has also participated as a drummer with artists such as The Brobecks,^[7] My Favorite Highway, Matchbook Romance, Vanna, Kiev and Aiden.^{[8][non-primary source needed]}

Falling in Reverse (2011–2017)

In late May 2011, Seaman officially joined the post-hardcore band, Falling in Reverse,^[9][10] replacing Scott Gee. The band released their first album, The Drug in Me Is You on July 26. Although he did not participate in the recording of the album, he is credited as part of the band.^[11] Seaman performed on the band's second studio album Fashionably Late, released on June 18, 2013. The band released their third studio album Just Like You on February 24, 2015.

Around the time of the band's fourth and more recent release with Seaman, Coming Home, it was rumored that he had parted ways with the band.^[12] This was confirmed when the band performed on May 8, without Seaman and with Chris Kamrada now playing drums for the band.^{[citation needed]}

Icon for Hire (2017–2018)

Prior to his departure from Falling in Reverse, Seaman announced on April 6, 2017, that he would play supporting drums for rock band Icon for Hire starting May 3, 2017.^{[13][14][non-primary source needed]}

I Dont Know How But They Found Me (2016–2023)

Seaman performed drums on Dallon Weekes' various solo efforts, which led to Weekes proposing the idea to present themselves as a duo under the name I Dont Know How But They Found Me.^[15] Seaman and Weekes started playing small shows in late 2016, but kept the group secret. They officially debuted at Emo Nite Los Angeles' 2-year anniversary event on December 6, 2016.^[16] After the show, different sources wrote about a "new side project" by Seaman and Weekes, and confirmed the band name.^{[17][non-primary source needed][18]} Even when confronted with photos and videos taken at the shows, the duo denied the whole project for months,^[19] as they did not want to exploit their name recognition and association with the well-known bands they played in.^[20] In September 2023, Weekes made a statement via social media announcing Seaman's departure from the band, citing a "series of broken trusts" as being the reason for separation.^[21]

Other projects

In November 2014, Seaman was featured on Dallon Weekes' Christmas song titled "Sickly Sweet Holidays".^[22] Seaman also performed on Weekes' second Christmas single titled "Please Don't Jump (It's Christmas)", released in November 2016.^[23]