It may be Red Nose Day on Friday, but Simon Cowell was not seeing the funny side at a gala in aid of Comic Relief last night.
The music mogul failed to crack a smile as he was joined by best pal Sinitta at a gala performance of 'The Book Of Mormon'.
But despite Simon's sour face last night, he has already done something funny to raise money - he is starring in a sketch with David set to air as part of Comic Relief on Friday.
Pictures released earlier this week gave a sneak peek and showed the pair getting 'married' following their long-running 'BGT' bromance...
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