Ben's Brother Hartman formed and was the lead singer of the band
Ben's Brother, so named because he has an older brother named Ben. The single "Let Me Out" earned Hartman a nomination for the
Ivor Novello Award for Best Song. In 2009, the band released their second album,
Battling Giants, That album's first single, "Apologise", was co-written with
Natalie Imbruglia, which reached number 1 on 20 charts in 16 countries. He wrote "All You Good Friends", the debut single for
The Voice UK 2016 winner
Kevin Simm; co-wrote "
All I Need to Know" by
Emma Bunton; wrote and produced "
Stargazing" by
Kygo; which was nominated for a Brit Award in 2020 for Best Song. Jamie was also a producer on
Conrad Sewell's debut EP
All I Know, co-writing the single "
Start Again", which won the 2015
ARIA Award for Song of the Year. Hartman co-wrote and co-produced the
Backstreet Boys single "
Don't Go Breaking My Heart" with
Stuart Crichton and
Stephen Wrabel. which was nominated for the 2019
Grammy Award for Best Pop Duo/Group Performance. He wrote two songs, including the single "
Hold Me While You Wait", on
Lewis Capaldi's 2019 album
Divinely Uninspired to a Hellish Extent, which was the top album on the
UK Albums Chart for the years 2019 and 2020. In 2020, Jamie co-wrote the end title of Disney's Mulan entitled
Loyal Brave True which was nominated for a World Soundtrack Award and was also nominated at Chicago's Indie Critics Awards (CIC) He wrote and produced nine songs on
Celeste's 2021 album
Not Your Muse, which reached number 1 on the UK Albums Chart. He was nominated for a Grammy in 2022 for Best Song Written For Visual Media with "Here I Am (Singing My Way Home)" from
Respect (soundtrack) co-written by Hartman,
Jennifer Hudson &
Carole King. "Here I Am (Singing My Way Home) was also nominated at the 2022 Grammys, Society of Composers and Lyricists Awards, Black Reel Awards, Satellite Awards, and Hollywood Music in Media Awards (HMMA). He also co-wrote hit song "Dancing is Healing" with
Rudimental,
Charlotte Plank and
Vibe Chemistry and co-wrote 2023 breakout hit with
Sam Ryder featuring
Brian May that broke in a montage scene in
Ted Lasso season 3, episode 11 which was nominated for an Emmy in 2023 for Outstanding Original Music and Lyrics, and also won at the Hollywood Music in Media Awards for Best Song For a TV show/Limited Series. Jamie also co-wrote Rudimental, Charlotte Plank and Vibe Chemistry - Dancing Is Healing which was nominated for Song of the year at the 2024 Brit Awards. He has also written for
Christina Aguilera,
Jennifer Hudson,
Andy Grammer,
James Bay,
Kylie Minogue,
Anastacia,
The Wanted,
JP Cooper,
Miriam Bryant,
Will Young and
Louis Tomlinson. ==Awards and nominations==