Campbell is currently on-loan at Tottenham and recent performances for both Spurs and the England Under 21's have put the 21-year-old United striker in the spotlight.
"When I was younger I didn't used to support a team, I used to just support Andy Cole," Campbell told The Sun Newspaper.
"He was the person that I watched every week.
He was really helpful to me.
"I even chat to him nowadays and he gives me tips on how to develop.
"He's given me advice on just about everything — his experiences in the game, what he did in training, what he did out of training."