Boybands Blue and Jedward are among the favourites to make their countries proud in the Eurovision final.
The Irish twins will perform their song Lipstick at the annual contest, after impressing enough viewers on Thursday night's semi-final to make it through to the final 25.
Blue, who will represent the UK with their track I Can, automatically qualify for the final.
The reunited four-piece will be hoping for more success than last year's British entry Josh Dubovie, who escaped the dreaded "nul points" score but still came last.
John and Edward Grimes first shot to fame with energetic routines on The X Factor and their Eurovision performance on Thursday was just as eye-catching.
The pair dressed like cartoon characters with big-shouldered red sparkly jackets and tight black trousers, adding to the effect with synchronised robotic dance moves. There were also jumps, kicks, and even cartwheels to distract viewers from a slightly weak vocal performance.
The twins jumped up and down with excitement when Ireland was named as the fourth entry going through to the final.
Ireland is the contest's most successful country but Jedward have some stiff competition in the final.
Apart from Blue, other rivals include last year's winner Lena who is defending her title in Dusseldorf, Germany, with the song Taken By A Stranger.
Another former winner, Israel's Dana International, failed to make it through Thursday's semi-final. There was also disappointment for another pair of twins. Slovakia's Daniela and Veronika Nizlova - performing as TWiiNS - missed out on a place in the final.