This arrangement is a great way to get comfortable playing in the key of B♭, which means your hands need to feel at home on those black keys — especially B♭ and E♭.

Your right hand carries a simple, repetitive melody that sits in a small range, so focus on keeping your fingers relaxed and close to the keys rather than lifting them high.

Your left hand will mostly cycle through a few chord shapes, and the trickiest part is keeping that pattern steady at 126 BPM; start at around 80 BPM and only speed up once transitions feel automatic.

Watch the move into and out of the E♭ chord — beginners tend to hesitate there, which breaks the groove.

Practice that single chord change in a loop until it's boring, then reconnect it to the rest.

Once the left hand is on autopilot, layering the melody on top becomes surprisingly easy.

This is the song that'll build your confidence handling flat keys in a real musical context, and that skill transfers to dozens of other pop tunes.