"The X Factor" UK 2015 will enter the semi-finals this week. Only four acts are remaining in the competition after the elimination of 4th Impact, the Filipino girl band of sisters Mylene, Irene, Almira and Celena.

4th Impact from Cheryl Fernandez-Versini's GROUPS lost out to Lauren Murray of Rita Ora's GIRLS in the quarter-final. The girls from the Philippines sang "And I Am Telling You I'm Not Going" for the play offs but were sent home by public after the judges' votes were tied at 2-2.

"The X Factor" UK 2015 is now left with only four acts. One more act will be sent home in the semi-finals this weekend and three will advance to the finals.

Here is list of top four semi-finalists:

Louisa Johnson from Rita Ora's GIRLS: The 17-year-old singer is one of the favourites to win the competition. She took on the song "Love Yourself" by Justin Bieber and "Jealous" by Labrinth in the quarter-final. She was suffering from a sore throat and that showed in her performance. It was not her best performance but judges were all praise for her.

Lauren Murray from Rita Ora's GIRLS: She performed "Firestone" by Kygo ft Conrad Sewell and "You Don't Own Me" by Lesley Gore in last week's live shows. She put up a good performance but landed up in the bottom two. She sang "Vision Of Love" for survival and beat 4th Impact to enter the semi-finals.

Reggie n Bollie from Cheryl Fernandez-Versini's GROUPS: The energetic duo sang "Watch Me (Whip/Nae Nae)" by Silento and "Dynamite' by Taio Cruz in the quarter-final. Their vocals was not perfect like in their previous renditions but they managed to bring the house down with their foot-tapping performance.

Che Chesterman from Nick Grimshaw's BOYS: He is no doubt a bunch of talent but he faltered in the quarter-finals, failing terribly with his rendition of "Hello" by Adele. However, he bounced back in his second song "Try A Little Tenderness" by Otis Redding and nailed it. He was not even in the bottom two, which showed that audience want him to stay.