Maroon 5's Adam Levine, who coached slain singer Christina Grimmie on The Voice, offers to pay for her funeral

Adam Levine (left) of American pop-rock band Maroon 5 has offered to pay for the late Christina Grimmie's funeral.
Adam Levine (left) of American pop-rock band Maroon 5 has offered to pay for the late Christina Grimmie's funeral. PHOTO: ADAM LEVINE /TWITTER
Adam Levine of American pop-rock band Maroon 5 performed at the SingTel Singapore Grand Prix Formula One Concert in 2012.
Adam Levine of American pop-rock band Maroon 5 performed at the SingTel Singapore Grand Prix Formula One Concert in 2012. PHOTO: ST FILE
A file picture dated Nov 20, 2011, shows US singer Christina Grimmie at the 39th American Music Awards held in Los Angeles, California.
A file picture dated Nov 20, 2011, shows US singer Christina Grimmie at the 39th American Music Awards held in Los Angeles, California. PHOTO: EPA

Maroon 5 frontman Adam Levine, who was slain singer Christina Grimmie's coach on reality TV show The Voice, has offered to pay for her funeral.

Levine will also fund travel expenses for the 22-year-old singer's mother, her brother said in a Facebook post on Monday (June 13).

"I found out this morning, that Adam Levine personally called my mother and said he will pay for the funeral and her plane flight, and I was blown away," Marcus Grimmie wrote on Facebook.

Marcus has been hailed as a hero for tackling Kevin James Loibl, 27, the gunman who shot and fatally wounded his sister during a meet-and-greet session with fans after a concert in Orlando, Florida, last Friday. Christina was rushed to hospital, but died of her wounds.

Levine, who coached Christina in her appearances on The Voice in 2014, had earlier tweeted about her death, sharing a photo of the two and saying that he was "absolutely devastated and heartbroken".

On Instagram, he wrote: "I'm sad, shocked and confused. We love you so much Grimmie."

Levine isn't the only celebrity who has paid tribute to the late singer.

Selena Gomez said on Twitter on Sunday: "My heart is absolutely broken. I miss you Christina."

A video posted on YouTube showed Gomez breaking down in tears during a concert on Saturday. The singer then recounted her history with Christina to the audience, saying that they had met when Christina was 14.

"I don't really understand how this happened, but I would like to dedicate this next song to her," Gomez told the crowd.

A crowdfunding drive for the Grimmie family on GoFundMe has also raised more than US$132,000 (S$179,000) in two days. Set up by Christina's manager, the money will be used to "help our family move out of our current house and to take care of the funeral", Marcus said.

Its initial funding goal was just US$4,000.

"Now a friend just told me to look at the gofundme page and I see it is at 100k. Words cannot express... literally I have no words," Marcus wrote on Facebook.

Separately, a change.org petition to have Christina remembered in the upcoming instalment of her favourite video game series, The Legend Of Zelda, has attracted more than 17,000 signatures.