Los Angeles, California - Singer Nick Carter discussed having to painfully perform on stage after learning of his brother Aaron Carter's unexpected passing.

The 42-year-old pop star has spoken on his little brother's shocking death and having to get back on stage after hearing the tragic loss.

On Friday, Nick, who was in London on tour with the Backstreet Boys when Aaron passed away on November 5, revealed to Extra that performing following the news "was very emotional for me."

"That night, it was tough to get up on stage. There's the old saying 'the show must go on.' That's been with us for years, but that night, I didn't know what to expect, I didn't know what was going to come from it, getting on that stage," Nick said.

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The I Want It That Way artist continued that he was "comforted" by the outpouring of love from fans during the concert.

"Getting the reaction from the fans, it was definitely comforting, and it meant a lot to me," he continued.

The day after the I Want Candy singer's death, fellow Backstreet Boy Kevin Richardson spoke to the crowd at the O2 Arena on behalf of a visibly emotional Nick.

"Tonight we got a little bit of heavy hearts because we lost one of our family members yesterday," Richardson told the crowd during a brief tribute to Aaron.

"He was a part of our family and we thank you guys for all the love and all the well-wishes and all the support," Richardson said.