Colin Jost welcomed his first child with wife Scarlett Johansson, a baby boy named Cosmo.But there was one person who was left scratching their head over the name - his mother, Kerry Kelly.During an appearance on Late Night with Seth Meyers, Colin, 39, revealed his mother was 'slightly thrown by' the moniker and even asked if it was final. 'Didn't quite understand it': During an appearance on Late Night with Seth Meyers, Colin Jost, 39, revealed his mother Kerry Kelly was 'slightly thrown by' the name Cosmos and even asked if it was final'My mom, I would say, was slightly thrown by it and didn't quite understand it,' Colin admitted.'I don't know if she thought it was kind of, like, a hippie thing...
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