"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.

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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.