Misc: What is traditionally associated with a Maypole?

Questions

Titles: Musical with: June is Busting O All Over, You'll Never Walk Alone, Soliloquy?

Titles: Operatta with songs: Golden Days, Drinking Song, Deep in My Heart Dear?

Titles: Operatta with songs: You're Devastating, Yesterdays, Smoke Gets in Your Eyes?

Titles: Operetta with: Tramp, Tramp, Ah Sweet Mystery of Life, Neath the Sothern Moon?

to what band do the gallagher brothers belong?