The Irish twins were voted to perform their track Waterline on Saturday in Baku, Azerbaijan, along with 9 other acts.
The former X Factor contestants, John and Edward Grimes, will be up against the Russian grannies, Buranovskiye Babushki, who also made it to the final.
After they found out, Edward said: “This proves there is an appetite for Jedward right across Europe. We can’t wait now to see how we get on in the grand final.”
John added: “This year it’s way, way bigger because everyone knows us from last year. It’s a million times crazy.”
The pair face stiff competition from the Russian grannies Buranovskiye Babushki as well as the UK’s legendary Engelbert Humperdinck, who only managed to reach number 76 in this week’s singles charts.
Sacrificing their perfectly styled hair and space age gold and silver costumes for showbiz glory, the twins got a soaking as they jumped into a fountain on stage at the end of the performance.
Jedward get soggy at Eurovision semi-final (Getty images)
It’s the second year running that the twins, who shot to fame after their 2009 appearences on ITV’s The X Factor, get to represent Ireland and make everyone very proud – last year their cheeky song Lipstick was voted 8th overall in the final.
They opted for flat hair after local stylists nicknamed their usual barnets “Viagra hair”.
The twins are the sixth favourites to win, and France, Italy, Germany, Spain, the UK and Azerbaijan have already qualified for the final.
John confirmed that this year would be their last Eurovision, regardless of whether they win or lose.
Watch the video for the boy’s entry into this year’s Eurovision below…