Adele's Advice to Sia Will Make You See Their Performances in a Whole New Way

Sia and Adele are two of music's most well-respected artists, but they have a little trick when it comes to hitting those high notes. Sia appeared on The Graham Norton Show alongside Kurt Russell and Tina Fey and spilled a surprising industry secret. OK, she's (maybe) joking, but still, even Russell couldn't contain his laughter when he heard it. Watch the clip above, and pay attention next time to one of the women performing live to see if they use this little trick!