His first Instagram post appeared in honor of his 5th birthday in August of 2017.
One of his most watched videos on Instagram is a montage of him mimicking his father completing tasks called "Like Father Like Son." It was posted in honor of Father's Day and racked up over 100,000 views in less than two months.
His father Paul is notorious for scaring him in the bathtub, to the point where Lennon has demanded he stop doing so in an Instagram video that was a compilation of scares.
His father comedy partner is Paul Klein.