Yep, just WHO knew these two were mates?!
Adele and Simon were spotted leaving their hotel in Beverly Hills minus baby Angelo and sneaking over to Robbie's yesterday.
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The 24 year old singer has been over in LA for the Grammys and Golden Globes and is expected to finally return to the UK after the Oscars next week.
Robbie, meanwhile, is expected in the UK tomorrow for Brits rehearsals.
On that note, we hope Robbie and Adele found time to have a quick chat about this week's Brits over chips and dips.
Robbie is due to perform and we are sure Adele has a few things to say about the ceremony after her acceptance speech was famously cut off last year.
However, with the pair both being new parents we reckon they probably just talked about babies all night.
Both had babies last year, with Robbie becoming Dad to baby Teddy and Adele also giving birth to Angelo James in October.