Can I stream Super Bowl halftime show live on Apple TV/Apple Music?

Not through Apple Music or Apple TV+.

In the US, the Super Bowl is streaming on Fox/​Fox Sports.

International licensing may differ by country, but it will not be through Apple TV.

I think DAZN NFL subscribers can watch the game, including the halftime show, internationally.

There are some in-advance radio/podcast shows on Apple Music, with previews, talks, and interviews on (the road to) the halftime show, but that is not the SB halftime show itself.