This might be the strangest thing to be inspired by Doctor Strange yet.
Gloson Teh, a 18-year-old in Malaysia, spent 12 hours painstakingly recreating the second trailer for the Marvel film with just his voice - and the results are pretty magical.
Teh tells Heat Vision his friends have joked that his most convincing impression is of Tilda Swinton's The Ancient One - but he hopes as he gets older his voice will get a little deeper so he "can actually do a convincing impression of Benedict Cumberbatch and Wong."
Doctor Strange has grossed more than $500 million worldwide to date. Check out the a cappella trailer below.