Complex sentence: She left The Creepshow in 2012, after they gained international fame when a video was uploaded to YouTube where Blackwood, together with Walk Off The Earth, covered the song "Somebody That I Used to Know" by the Australian singer Gotye.
Split into simpler sentences: She left The Creepshow in 2012 after they gained international fame when a video was uploaded to YouTube. In the video, Blackwood, together with Walk Off The Earth, covered the song "Somebody That I Used to Know" by the Australian singer Gotye.