Gwen Stefani is "envious" of Jennifer Lopez's dancing skills - and her beauty.

Gwen Stefani

Gwen Stefani

The No Doubt frontwoman is following in the footsteps of the 'On the Floor' hitmaker by staging her Las Vegas residency at Planet Hollywood Resort & Casino's Zappos Theatre and she's a big fan of the 'Shades of Blue' actress.

She said: "I love her so much. She is so beautiful and her show is so -- she works so hard on that stage.

"The dancing, I'm obviously envious of that... and her beauty."

Gwen - who has Kingston, 12, Zuma, nine, and Apollo, four, with her ex-husband Gavin Rossdale - recalled how the late Prince warned her she was "competition" for 48-year-old Jennifer, but at the time she couldn't see the similarities between them.

She told 'Entertainment Tonight': "The thing with Jennifer, we have a similar life, and back in the day, I remember Prince said to me... I don't know how he said it, but it was almost like, 'You guys are in competition.

""And I remember being in his limousine with him and I'm like, 'What are you talking about?... I don't understand, I'm in No Doubt.' "

But the 48-year-old singer acknowledged she and Jennifer - who has twins Max and Emme, 10, with ex-husband Marc Anthony - are actually so similar, she's even bought the star's old house and kept the decor the same.

She continued: "We are the same age, and we just kind of went through our lives and we had kids the same time and, like, I ended up buying the house that she had. I live in her house that she put that marble in. Thank you, Jennifer. And then now I'm in her dressing room. So, I love her so much."

The 'Used to Love You' singer made her Las Vegas debut on Wednesday (27.06.18) and had a great time, even though she felt "sick" with the pressure of making it work.

She said: "I feel sick right now because it was so much work... the pressure of wanting it to be so great, and it's such a new place to be.

"It was magical, and also every time you play a new room, it's so different. The room is so intimate and kind of theater-y. [There were] so many things to get used to, but it was fun."