Lucas Holliday has a lot to be grateful for this year. The 26-year-old Dollar General cashier from Lansing, Michigan became a viral sensation last week after he was filmed singing Maxwell's "Ascension" while checking in items at work. Then on Friday night, he experienced a whole different kind of fame when Maxwell invited him to sing the song with him on stage during his Detroit concert. Holliday absolutely killed it, proving himself a true star.

You can watch Maxwell's footage of the duet here:

Sources: ABC News