Alexander Arrindell (b. May 8, 1998), better known by his stage name THATBOYSEVEN, is a Dutch recording artist and producer based in Amsterdam, the Netherlands.

He began producing at the age of 15, and after starting an Audio Production course at the SAE Institute of Amsterdam, learned to record and engineer his own music.

Fast forward to late 2021, THATBOYSEVEN released his first single titled “Run It Up” produced by 8!, PERXS & Xenokrazy. The track contains a blend of wavey melodic lyrics with bouncy drums and melodies.