Idina Menzel is engaged.

Idina Menzel

Idina Menzel

The 'Frozen' star took to Twitter to reveal she is "so happy" that she is set to wed her fiancé Aaron Lohr.

She wrote: "What an incredible week. Thank you to everyone for all your support with the album.

"As if this week couldn't get any better I have wonderful news... my man and I are engaged! We are so happy. It's a beautiful time."

Meanwhile, the 45-year-old singer previously insisted she loves being "self-sufficient" and not having to rely on a man.

She said: "My career is what makes me feel confident. To feel self-sufficient and like I don't need a man to support me and all that kind of stuff makes me feel good about myself. It's just, you know ... Everyone talks about me being a role model for young girls and that's not always the truth in my day-to-day personal life. I'm not constantly practising what I preach.

"I'm a little uncomfortable carrying that banner. I'm not always, 'Oh, I feel so great about myself today. I'm a powerful, confident woman, and I'm not going to care what anyone else thinks of me!' I mean it's all bullshit really. I can be a mess. The older I get, I get wiser about some things, and yet I get more fragile and vulnerable about others."

And Idina also opened up about her divorce from Taye Diggs, admitting she feels "guilty" about forcing her seven-year-old son Walker to grow up in two different households.

She added: "I have a lot of guilt about that. I come from divorced parents and I said I wouldn't ever do it.

"I'll always be hard on myself I guess. I want to do the right thing by my son, and that means balancing my work and my quality time with him. I know he needs to grow up seeing a really happy, confident mother, then he'll be drawn to those kinds of women."