Updated On: 12 July, 2016 09:02 AM IST | | IANS
<p>Singer Katy Perry sang for Isla Fisher at her 40th birthday party in February, the actress has revealed after months</p>

Katy Perry and Isla Fisher
Los Angeles: Singer Katy Perry sang for Isla Fisher at her 40th birthday party in February, the actress has revealed after months.

Katy Perry and Isla Fisher. Pics/Santa Banta