Machine Gun Kelly Performs 'My Ex's Best Friend' & 'Lonely' on 'Saturday Night Live' - Watch Now!

Machine Gun Kelly is rocking the stage at Saturday Night Live!

The 30-year-old musician made his debut on the sketch comedy series alongside host John Krasinski on Saturday (January 30) from New York City.

PHOTOS: Check out the latest pics of Machine Gun Kelly

For his first performance, MGK gave a high-energy performance of his song “My Ex’s Best Friend.”

Later in the night, MGK slowed things down for an emotional performance of his song “Lonely,” which he wrote about his father who died in July 2020.

Earlier in the day, MGK was spotted heading out for the day with girlfriend Megan Fox.

If you missed, the 36-year-old actress shot down rumors that the two were engaged.