Geiger’s contribution to the career of Shawn Mendes has been sizeable. Stiches featured on Mendes’s 2015 album Essential. The track was initially a pre-order exclusive track but took on a life of its own, gave Mendes his first Top 10 single on the Billboard 100 and now has been streamed in excess of 1 billion times on Spotify alone.

Further billion streaming songs were then achieved on the songs Geiger created for the follow up album Illuminate, in 2017. The lead single from this album was Treat You Better, which gave Mendes another US Top ten single, followed by There’s Nothing Holdin’ Me Back and Mercy.

For Mendes’s third self-titled album in 2018, Geiger contributed the songs In My Blood, the lead single into the album and a track that was nominated for Song Of The Year at the Grammys. The other track was Lost In Japan, and both tracks have now accumulated over half a billion streams.