Merrick William Hanna is from Encinitas, California. He is a hip-hop dancer, popper, animator, and actor.  He has watched America's Got Talent for a long time. He is influenced by his grandma who takes four dance classes each week despite being in her eighties. He also auditioned for Seasons 10 and 11 but was cut before the auditions, according to Instagram Live.
America's Got Talent 2017 Merrick Hanna Full Clip Live Shows S12E15
America's Got Talent 2017 Winners Part 3 Live Show Results S12E16
Merrick Hanna's Week 2 Semifinals performance in Episode 1219 consisted of dancing to Jon Bellion's "iRobot (The Human Condition)." At one point in the performance, he appeared to be flying in the air. Mel B gave him a standing ovation. Merrick did not receive enough votes to advance to the Finals in Episode 1220, eliminating him from the competition along with Christian Guardino instead of Angelica Hale.