After starting the day with tears, she was pictured outside the central London studios beaming for the cameras as she walked for the last time ever to her show.
Fearne, 33, wore a silver velvet dress that showed off her blossoming baby bump, teamed with chunky black sandals and a black carrier bag.
We still can't believe this is the last time ever we'll be able to gush over her daily walking to Radio 1 outfit!
The star announced back in February that she was leaving Radio 1 after ten years on air, saying it had been a difficult decision but she was leaving with plenty of memories.
Her final show will feature Foo Fighters legend Dave Grohl, ensuring she leaves with a bang! Her replacement is Official Chart Show host Clara Amfo.
Fearne revealed this morning that she'd been in tears before she even left the house, after son Rex, two, called her a princess.
She tweeted: "My son just looked at my rather over the top dress I'm wearing today and said " mummy princess" Tears have started before I leave the house."
We're not the only ones sad to be saying goodbye to Fearne: she's been retweeting messages of support all day from colleagues and musicians who have appeared on her show.
Ed Sheeran said, "Lots of love to @Fearnecotton and all the support she's given me and so many others on @BBCR1. You are the bestest evah," while Maroon 5 tweeted: "Always a blast in the @BBCR1 Live Lounge w/@fearnecotton. Thanks for all the love. We'll miss you! #FarewellFearne."
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