It's safe to assume that Chelsea stars Eden Hazard and Romelu Lukaku are the naughty schoolboys of the Belgium national team.

The pair, who are currently on international duty with the Red Devils, filmed themselves saying hello to their fans before the temptation became too much for Hazard, who signed off with a cheeky expletive.

Both Hazard and Lukaku, who is currently on loan at Everton from Chelsea for the season, then burst out laughing as the 12-second clip ends.

Hazard and Lukaku aren't the only stars on the Chelsea books who enjoy making comical videos to post on Instagram.

David Luiz is also a regular user of the video and photo sharing app - and made everyone laugh a fortnight ago with this clip of him saying hello in several languages.

Don't expect any more Instagram videos from Hazard and Lukaku for a little while, though. The duo are preparing for Belgium's final 2014 World Cup qualifiers against Croatia and Wales on Friday and Tuesday, respectively.

*Warning: Video contains some strong language

#Romelu Lukaku
#Eden Hazard
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