Joe Sugg and Caspar Lee have told Digital Spy that they can appreciate why people don't understand vlogging.

The YouTube stars - who lend their voices to seagulls in The SpongeBob Movie: Sponge Out of Water - explained that they can see why people don't think watching someone make videos in their bedroom is entertaining.

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"I can totally understand why someone would be like, 'All you do is make videos in your room and show people what you do in your life. How is that entertaining?'

"I can totally understand what they mean by that," said Sugg, who posts videos under the name Thatcher Joe.

"Sometimes even I think, 'How can you enjoy just watching what I get up to in the day and what I eat and stuff?' But people love it for some reason."

The pair - who share a flat together - also told DS about being competitive, why working in your pyjamas is so good and how they'd feel about having TV cameras put in their home...