Idina Menzel's work "saved" her amid her split from Taye Diggs.

The 55-year-old actress has recalled going through a "really hard" time personally back in 2013 when her 10-year marriage was ending but also experiencing huge professional success thanks to animated movie Frozen and starring in If/Then on Broadway.

Speaking at a retrospective New York Comic Con panel on Thursday (08.10.26), Idina - who has Walker, 17, with Taye - said: "We were separating and it was really hard.

"The story of the show [If/Then] was so much about a woman who's making different choices in her life and finding her identity.

"And then Frozen was coming up just as Taye -- we were breaking up...

"It was very complicated, that whole time.

"[But those projects] saved me. It was filling my heart with joy and love and forgiveness and all of that stuff. And also being able to show my son this wonderful film."

At the time, Idina's signature ballad from Frozen, Let It Go, became a huge hit, which the actress - who is now married to Aaron Lohr - joked was hard on her estranged husband.

She quipped: "The poor guy. It was Let It Go. He's in a mall and he's like, 'F*** this! It's everywhere, 'Let It Go, Let It Go.' Like, 'I can't let it go!'"

Idina and Taye met when they starred together in a Broadway production of Rent in 1996, and she previously claimed the Snowpiercer actor faced "disappointment" over their interracial marriage.

She said on the Dinner's on Me podcast: "It's very complicated. I mean, [we're] very supportive of each other always. [I'm] so excited for him.

"The thing that came into play more -- and he's talked about it too -- is the interracial aspect of it.

"Because when you're in the theatre, it's just not a thing, like, we all love each other and sleep with each other and [are] best friends with whoever wants to be.

"When you leave that cocoon, and now, in his case … he's on the cover of Essence and Ebony and being interviewed by all these Black journalists and I think he had his own stuff to deal with that.

"And it seemed like there was disappointment in the community with him because he was married to [a] white, Jewish girl from some show we don't even remember, and so, I took that on too.

"That's stuff that we had to deal with. It was less about being successful and more about that kind of stuff.

"You know, it's the 'Can we get a picture of him by himself?' [when we were on the red carpet together]."

Idina stepped out of Taye's shadow when she landed the role of Elphaba in Wicked in 2003 and the 55-year-old actor was "so supportive".

She said: "He was relieved, probably [when I got attention for 'Wicked'], and happy and proud of me.

"He was always so supportive and probably relieved, so he didn't have to feel like he was overshadowing me in some way or taking up too much space."