American pop star Katy Perry has just performed at the AFL Grand Final before Sydney and Brisbane do battle for the premiership.

And Jimmy Bartel and Matthew Lloyd have given their instant thoughts on the performance!

<p>American pop star Katy Perry has just performed at the AFL Grand Final before Sydney and Brisbane do battle for the premiership.</p>
<p>And Jimmy Bartel and Matthew Lloyd have given their instant thoughts on the performance!</p>

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