VIDEO: Molly gives Sterling performance for Ireland in Eurovision

Molly Sterling has performed for Ireland in the Eurovision semi-final tonight.

The 17-year-old from Tipperary performed her song Playing With Numbers, which she co-wrote with Greg French.

Vote for #IRL @SterlingMolly if you're in UK or Australia #Eurovision2015 https://t.co/nrKR24SEaL

— RTÉ2 (@RTE2) May 21, 2015

Good luck to #IRL's @SterlingMolly #Eurovision #IrishMolly http://t.co/V7v4tSjRlt pic.twitter.com/NOMdq00HgD

— RTÉ Player (@RTEplayer) May 21, 2015

Social media is already busy with comments of support and praise for Molly's performance.

Go on @SterlingMolly , stunning performance! Nailed it. #eurovision15

— Lynn Rafferty 🐆 (@LynnsDelighted) May 21, 2015

@RTERadio1 Way to go Molly! @SterlingMolly pic.twitter.com/AdhIlvdC1J

— Catherine Boland M.A. 🇮🇪🇺🇦🇵🇸 (@BolandCatherine) May 21, 2015

How brilliant was @SterlingMolly! #IRL #Eurovision http://t.co/V7v4tSjRlt

— RTÉ Player (@RTEplayer) May 21, 2015

#EurovisionSongContest come on our Irish Molly #MollySterling great performance girl @SterlingMolly 🎤👍👏🍀💚

— Joanne Farrelly (@jogonecrazy) May 21, 2015

I'm feeling confident in our qualifying chances #MollySterling #Eurovision2015

— Keith Price (@keithprice9614) May 21, 2015

Viewers can get voting. Anyone living in a country participating in the semi-final can vote via the official app, telephone and/or SMS. The voting window opens after the last song has been performed, and ends 15 minutes later.

#AUSTRALIAN friends, you can show your love for @SterlingMolly #IRL by voting tonight when lines open. Text 02 to 1970 2299 #Eurovision2015

— RTÉ (@rte) May 21, 2015

Televoters determine 50% of the outcome.