"It's like a dream coming true. I've been a fan of the show, Singer, for three or four years. Last season was my favorite because Jessie J was in it. I am a big fan," says Kostov in Changsha, Hunan province, in his hotel room the day after recording the show.

"The fact that they say I am good enough for the show makes me go crazy. I almost cried the first time I saw the email from the TV show team," he adds.

Now, in its seventh year, Singer, the celebrity singing competition TV show, has been a great success for Hunan Satellite TV.

Each episode has celebrity singers perform live while the audience vote.

According to Hong Xiao, the director of the show, Singer, during the past seasons the show has built up a large fan base and distinguished itself with high quality live performances and exciting lineups.

This year, Kostov joined the show as the youngest performer, competing with six Chinese singers, including Liu Huan, Chyi Yu, and Yang Kun.