With photos circulating the web of Rihanna apparently smoking marijuana, we've had a look to find her some celebrity pals who have also been caught doing things they shouldn't have.

The Bajan singer has caused her fair share of controversy over the years, with the suspicious looking cigarette the latest. RiRi has previously been banned from a hotel in Barbados for allegedly smoking the substance.

Other famous names caught with marijuana include, Mischa Barton, Paris Hilton and James Franco. Even Daniel Radcliffe has been snapped using the drug.

Going up a level, Linsay Lohan and Frankie Cocozza's use of Class A's have been well documented.

Luckily for Dappy and and Miley Cyrus, Meow Meow and Salvia were both legal at they time they were caught on camera using the drugs.

Have a look through the gallery above to see the famous faces involved in embarrassing cases. Some are more serious than others.

Casual marijuana users in the real world and in the world of show business are not likely to suffer a marijuana overdose, but that doesn’t mean the drug would not have an adverse effect on their health in the long run.