Lamar Odom has promised to knock Aaron Carter out in under a minute in their upcoming celebrity boxing match.

Lamar Odom

Lamar Odom

The former NBA star, 41, will take on the 33-year-old singer at the Showboat Casino in Atlantic City on June 12 in a three-round exhibition, and Lamar is confident of a win.

He told TMZ Sports: "It's not gon' be a fight. It ain't gon' be a fight."

When asked if he could knock Carter out in the first round, Lamar said: "Yeah. Probably, I would say the first minute."

Lamar also revealed his late friend Kobe Bryant has inspired him as he continues to move on from his 2015 overdose.

He said: "Well you gotta put God first, your higher power first, before you do anything.

"Family, my children. That's the reason why I'm living. It's just me sharing my 'Mamba Mentality' moment.

"That's the quest of being the best version of myself. In search of that."

Meanwhile, celebrity boxing honcho Damon Feldman previously revealed that both stars had begun training for the event and are taking the upcoming fight “very seriously”.

He added: "It's gonna be a war, man. It's gonna be a knockout, no doubt."