Timothee Chalamet finally promotes 'Wonka' in his 'SNL' monologue
'Wonka' will be out in theatres on December 15
Watch Timothée Chalamet and boygenius dance as Troye Sivan on 'Saturday Night Live'
Chalamet called Sivan a "moisturised Machine Gun Kelly" in the sketch
Boygenius to perform on 'SNL' with Timothée Chalamet as host
Timothée Chalamet and Boygenius will appear on the show next month
Hugh Grant sings Oompa-Loompa song in new 'Wonka' trailer
It also offers a glimpse at Wonka's world-famous chocolate factory