Australian band to worry about beats (3,6)

I believe the answer is:

cat empire

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'australian band' is the definition.
I don't know anything about this answer so I cannot judge whether this works.

'worry about beats' is the wordplay.
'worry' becomes 'care' (I've seen this before).
'about' is an insertion indicator.
'beats' becomes 'tempi' (I've seen this before).
'care' going around 'tempi' is 'CAT EMPIRE'.

'to' acts as a link.

Can you help me to learn more?

I've seen this clue in the Sydney Morning Herald.

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