The British actress and model was pictured running errands in Los Angeles on Tuesday, 24 March, before settling down later that night to watch the new episode of her American sitcom.
Kelly plays a woman named Prudence in the series. Prudence falls in love with a guy (Nick Zano)... but it's all complicated a bit by fact he's agreed to have a baby with his lesbian best friend, played by Elisha Cuthbert.
She had to relocate to LA to film the sitcom.
Chatting on Access Hollywood Live this week, she said: "It's been quite a transition. I've always travelled and been in Hollywood on and off over the years for work but to actually be here now is interesting."
The first ep of One Big Happy pulled in more than five million viewers but didn't get rave reviews, although Kelly has insisted she won't let any negativity affect her.
"There's a famous saying "critics are the ones that know the way, but can't drive the car" as much as we need them and I understand their job is to dissect and analyze," said Kelly.
"It's really you people that matter. That's why as performers we keep going and do what we do. Despite the years of criticism I've had I never lose sight of that. May we never stop entertaining or trying. And may the Critics continue to encourage us to do better. @nbconebighappy won its timeslot last night. You watched and you liked it. Thank you xxxxxxxxx."
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