We've gotta say, the 14-year-old actor is not bad! Though, it would be really hard to top the time is co-star Millie Bobby Brown CRUSHED Nicki Minaj's "Monster" verse on The Tonight Show earlier this year.
Meanwhile, fans are gearing up for the highly-anticipated second season of Stranger Things.
WATCH: 'Stranger Things': 7 Things We Learned From the Season 2 Table Read
Watch the video below to see what Charlie Heaton told ET to expect in the "slightly darker" sophomore effort.