Channing Tatum dancing to Ginuwine's "Pony" became a staple of the Magic Mike franchise, which is why it's so shocking that he wasn't included in the routine in Magic Mike's Last Dance. R&B singer Ginuwine released the hit song in 1996, but 16 years later, it was resurrected when Tatum, as Mike Lane, performed a strip routine to it in the first Magic Mike film. The scene became so iconic that Tatum's then-wife Jenna Dewan recreated it on an episode of Lip Sync Battle. Tatum revived the dance for Magic Mike XXL when he was working on his furniture business, and "Pony" came on the radio.

https://screenrant.com/magic-mike-3-channing-tatum-not-dance-pony-reason/