Mariah Carey serves up some whistle notes.

Mariah Carey delivered a rousing performance of ‘Always Be My Baby’ at a coronavirus benefit concert this past Sunday.

The 'iHeart Living Room Concert for America' was hosted by Elton John on FOX and iHeartRadio stations. The event raised $8 million to help fund COVID-19 relief, according to organizers, with the program attracting 8.7 million viewers across multiple networks. Mariah was giving those whistles at the end of this performance, and almost 9 million people recovered.