Joel Gustaf Berghult (born 8 April 1988), better known as Roomie, is a Swedish YouTuber, singer-songwriter, and producer based in Los Angeles, California.

He is best known for his YouTube channel RoomieOfficial, which consists of music commentary, original songs, covers, comedy, and more music-related content.

He has posted several viral videos and collaborations with PewDiePie (Felix Kjellberg), TheOdd1sOut (James Rallison), and Boyinaband (David Brown).

[20] In 2014, Berghult began to release music with fellow Swedish YouTuber PewDiePie (who is also a Gothenburg native).

[21][22] The song peaked at number one on the US Comedy Digital Track Sales published by Billboard[23] and has over 200 million views on YouTube as of 2021.

He grew discontent with the daily upload schedule, and announced a hiatus from YouTube on 11 June 2020, which lasted until 22 July.