Enterntainment on Carnival Destiny???

Question

1.I'm planning a trip in March and I heard all the reviews on the night life, is their a club for age group 24 and older? If so what type of music do the play? I went on RC and the played old pop songs all night. I'm more into hip-hop, reggae and r&b. Any suggestions?

2.Is destiny a smaller boat or is their ample room to move about