Can banger (in context of a song) be used as a noun?

I wrote this sentence and something seems off about it:

Some of their stuff are complete bangers.

Can't place my finger on what's wrong. Is banger not supposed to be used as a noun? or is it not supposed to be used in the plural form at all?

Solution 1:

This doesn't make sense because you're trying to pair the singular 'stuff' with the plural 'are'. 'Stuff' is uncountable so you can't say 'stuffs'. You're going to have to change that noun to a countable one.

Janus has it right with “Some of their songs are complete bangers”.

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