Ne-Yo admits turning vegan is one of the hardest things he's ever had to do because while he is feeling the health benefits from his new diet, he often craves meat.

Ne-Yo admits turning vegan is one of the hardest things he's ever had to do.

The 'Because of You' hitmaker decided to give up meat and any animal-based products for at least 30 days, and while he is feeling the benefits, he says it's been a very tough time.

He said: "I've gone vegan. There are more difficult things, but this is definitely a test of discipline. I just wanted to see if I could. It's one of the most challenging diets and ways of life there is out there. No meat, nothing derived from animals. I can't even eat honey as it comes from bees.

"I haven't killed anybody yet! I told myself I'd do, at the very least, 30 days. As far as energy levels and all of that, there's a very obvious change. On the other hand, there's been other days when I could kill someone for a hamburger."

The R&B star is now one of the biggest names in the music industry but admits even he gets star-struck but tries to remain cool.

When asked who is the most famous person he's urinated next to, Ne-Yo told The Sun newspaper: "Kanye West. I don't even think he saw me. He was a couple of urinals down. I wouldn't dare run up and be like: 'Hey!'

"You don't run up to people and try and shake their hand in the bathroom - you just don't. I let the man do his business - and then shook his hand later on in the night. That's toilet etiquette."