Under interrogation, the assailant admitted to the act, saying that he figured it would make for a funny prank. At this age, he also began attending the BRIT School where he studied drumming and was one of four percussionists in his year; the relative rareness of his primary instrument provided him with wide exposure to various projects of others in his school which he credits with exposing him to new music. Under the Rex Orange County moniker, O'Connor has released one mixtape, Bcos U Will Never B Free (2015), and three studio albums: Apricot Princess (2017), Pony (2019), and Who Cares? O'Connor rose to prominence in 2017 following multiple features on Tyler, the Creator's Grammy-nominated album Flower Boy, including the single " Boredom".

On April 30, Rexha released the fourth single, " Die for a Man", featuring Lil Uzi Vert from her upcoming album.

In March 2017 in Dallas, Rexha began her first solo headlining tour, promoting the EP across North America and Europe, named the All Your Fault Tour, with a total of 29 dates. The music video was released on January 6, 2017, and reached over 50 million views in four weeks, and has accumulated over 365 million views on YouTube.

Growing up, O'Connor listened to Queen, ABBA, Stevie Wonder, and American alternative artists like Weezer and Green Day. Conditioned for six weeks at close to freezing temperatures this beer exhibits all the classic flavours of the style right down to the reassuring quasi-bread dough foundation of yeast and sweet malt. Bebe Rexha Phone Thrower Told Police He Tossed His Cell at Singer Because He Thought 'It Would Be Funny' ".On 31 May 2018, he released a cover of " You've Got a Friend in Me" in collaboration with Randy Newman, the creator of the song.

Each session transports children to a world of dinosaurs and dragons, enabling pupils to experience something truly magical.In August 2022, a remix of Eiffel 65's song " Blue (Da Ba Dee)", titled " I'm Good (Blue)", by David Guetta with vocals from Rexha was released after it went viral on TikTok. Rexha gave further information on her second studio album in June 2019, confirming to Bang Showbiz, "I am heading off to the studio now and I am just creating, creating and creating.