Straight-laced Mark Wahlberg convinced party pal Sean '' Combs to invest in water brand AQUAhydrate by telling him it aided hangovers.

The movie star became obsessed with the supercharged hydration drink when he guzzled it on the set of The Fighter and realised it helped him bounce back from intensive training sessions - and he passed on a crate to his pal.

The Ted star says, "He asked me about the water and I sent him the water and he responded in the same way that I did... but his benefits were he was able to cure a hangover and still be able to get up in the morning after drinking a gallon of Ciroc (vodka).