DWAYNE 'THE ROCK' JOHNSON says Channing Tatum will be an ''amazing'' father.

The 'G.I. Joe: Retaliation' actor insisted his co-star - whose wife Jenna Dewan-Tatum is expecting their first child - will have no problem settling into parenthood.

Talking at the Los Angeles premiere of the action blockbuster, Dwayne said: ''He's going to be an amazing dad.

''As inspired as he is before his baby, to do well and [be] motivated to succeed, he's going to be even more so. It's going to be quadruple.''

The actor and WWE (World Wrestling Entertainment) superstar has a daughter of his own - Simone Alexandra, 11 - with ex-wife Dany Garcia and he was happy to pass his wisdom onto Channing, 32.

He added: ''I told him this when I found out that he was going to be a daddy. I said, 'Your life is going to change, and it's all for the better.' ''

No only offering parental advice, Dwayne, 40, has recently complimented his friend's good looks.

He said: ''He is, according to some, and one People magazine, the sexiest man alive.

''And the truth is, and I can say this because I'm very comfortable in my own manhood and sexuality, he is a very sexy guy. He's a good-looking guy.

''I love Channing. We have a great rapport and I love him. He's like a brother to me and he's great.''