Blink-182 drummer Travis Barker has slammed 20-year-old Echosmith musician Graham Sierota for sending flirty DMs to his 13-year-old daughter, Alabama.

The teenager took to Instagram to expose Sierota for DMing her by sharing screenshots beginning with a message from 2016 when she was just 10.

“By the way I’m Graham from Echosmith and I think ur beautiful,” read one of his first messages, which she left on read.

Then last month, he sent her an invitation to a BBQ. A week later, she responded saying “Ur like 40.”

In response, he wrote, “I just wanted to say i really like ur music and sorry for messaging and I’m 20.”

She responded, “Ok but u understand I’m a child?”, before sharing screenshots to her Instagram Stories with the caption, “Hey guys! So once again I am bringing this to your attention because I’m a 13 year old girl and he is 21/20 super creepy.”

She also tagged Echosmith’s official account in the Stories.

Barker’s daughter reportedly showed her father the Instagram messages. An upset Barker told The Blast “there’s nothing cool, normal or OK about it at all”.

“When I found out a 20-year-old man was trying to get in touch with my 13-year-old daughter by filling her Instagram messages with party invites and compliments I was disgusted.

“That’s predatory behaviour and there is nothing cool, normal or OK about it at all.”

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Heyyy panini

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Sierota has since apologised, claiming that he had not realised Alabama was a child and he had unwittingly made a “careless mistake”.

In a statement to Just Jared, he added: “I had invited Alabama to my parents’ big family BBQ along with many other people, and it wasn’t until she responded that I realised her age, at which point I apologised to her.”

“I’m really sorry and feel very badly about this.

“I didn’t realise she was a minor and assumed she was my age. I made a careless mistake and this is a big lesson for me.

“I would like to apologise again to Alabama, her dad Travis and her family.”

Image: Getty Images