Izuku was a model and singer while bakugou was also a singer. Bakugou was a huge fan of Izukus but always kept his cool. The company put izuku and bakugou together and they already made the song before but separately. Now they needed a dance to go along with it, as they followed the instructions on the dance, there bodies were close. Izuku was bent down a bit infront of bakugou and bakugou had to hold izukus chest, bakugou smirked.. he liked this part