Britney Spears is busy, busy, busy! The singer jetted to London to promote her new lingerie line -- and she also spilled some details on her upcoming album!

First things first: Yahoo! News reports that the singer describes the Intimate Britney Spears lingerie and sleepwear collection as "romantic, feminine and subtle."

"It's been a really long process, but it's been a lot of fun," she allegedly added.

As for fellow celebrities wearing the pieces, Britney reportedly admitted she'd love if Kate Middleton became a fan!

“I would love to see Kate in my underwear designs," she told reporters during the line's presentation (quotes via the Mirror). "That would be splendid. I’m going to send her one of every piece. So she’ll have plenty to choose from.”

Britney also hinted that she hopes Gwen Stefani becomes a fan, saying, “I’d love to see Gwen Stefani modeling my collection. I think she’s very cool and sexy.”

As smitten as we are with Brit's lingerie venture, we can't help but anticipate her upcoming album! While there's no confirmed release date yet (womp), Yahoo! reports that Britney promised the project will feature lots of "I hate men and I love men" songs.

Eeek! We're already clearing off space on our iPods, Brit.

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