One Direction shouldn't write their music, says songwriter Cathy Dennis

One Direction should refrain from writing their own material, according to Cathy Dennis.

The songwriter - who has Britney Spears's 'Toxic' and Kylie Minogue's 'Can't Get You Out Of My Head' among her credits - has advised the boyband to avoid taking control of their creative output.

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"It will be expected that they will write their own songs at some point," Dennis is quoted by The Sun as saying.

"Someone is going to say, 'Hang on, the royalties coming in from just singing are not enough'. The guys who wrote 'What Makes You Beautiful' are millionaires."

She added: "But if 1D started writing their own songs it could be the kiss of death, let's face it. I am not going to advocate that.

"To emulate the Rolling Stones - you can't have that overnight. I would not expect them to come out with anything amazing."

The Vaccines frontman Justin Young described his recent songwriting sessions with One Direction as "interesting".

Watch the music video for One Direction's 'One Way or Another (Teenage Kicks)' below: