Greek/Welsh singer Marina & The Diamonds has confirmed she'll be taking part in 'YouTube Presents' on August 15.

Marina told her fans: "Wanna let you know I will be doing a special 'YouTube Presents' for the U.S.A., August 15, at 4pm E.T.

"The host will be Erin Lucas and you'll be able to tune in at [link]www.youtube.com/presents[/link]."

What's more, YOU can ask Marina a question if you so wish...
"If you wanna pop me a pretty Q (make them weird & exciting PLEASE!!) just submit it at [link]www.youtube.com/marinaandthediamonds[/link]", she says. "If yours is selected, it will will be asked live to me during the event."

Check out the promo vid, below...