Katy Perry has returned to work after her maternity leave.

Katy Perry (c) Instagram

Katy Perry (c) Instagram

The 'Dark Horse' hitmaker - who welcomed baby Daisy into the world with her partner Orlando Bloom - opted for a cow-inspired outfit to mark her return to 'America's Got Talent'.

Taking to Instagram, she shared alongside a series of photos of her in a cow-printed custom outfit: "MUTHA MILKS is back to werk @americanidol and it’s ... udderly ... ridiculously MOO-ving already! ... Not pictured: my pumping breaks ... (shout out to @csiriano for the incredible custom costume) (sic)"

Meanwhile, Katy revealed Orlando is “doing a great job” of taking care of Daisy whilst she’s at work.

The 35-year-old singer said of her hectic schedule: "It's hard a little bit these first couple of days away and not being able to be there. But Daddy's doing a great job.

"Daddy has stepped in. I've seen him with the bottle, I've seen all the pictures. It's all good.”

The ‘Never Worn White’ singer also admitted going back to work feels “amazing” and is a wonderful "opportunity", and said her life feels “whole” now that she’s a mother.

She added: "I feel so grateful for this opportunity and for this job, and to be able to continue to inspire other people to go after their dreams. I mean, my life just feels very full and whole."

And 'Carnival Row' star Orlando said it's been a “blessing” that Daisy has been such an easy baby so far.

He explained: "She's sleeping through the night. It's always a journey with little bubbas coming into the world. They have to get back to their baby weight in that process. She's now back to her baby weight and she's now sleeping from nine until six which is unbelievable. It's a blessing."