Grimes' music has been noted by critics and journalists for its atypical combination of vocal elements, as well as an array of influences across electronica and pop, hip hop and R&B, experimental and medieval music.
According to the time stamps on her original My Space page, Boucher began writing music under the name Grimes in 2007.
Later in 2010, Boucher released her second album, Halfaxa.
After the release of Halfaxa, Boucher began publicly promoting Grimes and started touring beyond Montreal.
Boucher released the studio albums Geidi Primes and Halfaxa in 2010, and signed a recording contract with 4AD in 2011.
In interviews, Grimes explains that she was asked to do backing vocals for a friend, and though at first reluctant, realized it was easier than she expected it to be.In 2011 Boucher released five songs on her side of the split 12" with d'Eon, Darkbloom (through both Arbutus and Hippos in Tanks). It was like I knew exactly what to do next, as if my songs were already written.Beginning in May 2011, Grimes opened for Lykke Li on her North American Tour, [After nine days] you have no stimulation, so your subconscious starts filling in the blanks ... Widely considered Boucher's breakout record, Visions received critical acclaim from music critics and appeared on numerous music publications' year-end lists.NME included it on their 500 Greatest Albums of All Time list in 2013.
The album's second single, "Oblivion", also received additional acclaim.
Pitchfork Media ranked "Oblivion" number-one on their 200 Best Tracks of the Decade So Far in 2014.