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Hilary Duff knows how to cross-promote projects!

A preview for the star's new TV Land series Younger, premiering March 31, features a snippet of her new single, "Sparks." Duff debuted the one-minute clip via YouTube Thursday. The full song will be released Apr. 7, but before then, she tweeted, "You can @Shazam the song right now to unlock the single cover."

Duff hinted new music was on the horizon on Wednesday. "Excited for you guys to hear a sneak peek of what @iamtovelo, Bloodshy, @iamPeterThomas and I have been working on..stay tuned tomorrow!" she tweeted. In the upbeat song, she sings, "You can promise castles, treasures, babies, I don't care / 'Cause for now you're just enough for me, I want you near / Like a fairy tale to feel your breath right on my neck / You remember what I love, so baby, take me back / Turn the lights down low and kiss me in the dark / 'Cause when you're touching me baby I see sparks / You make my heart go [whistle] / You [whistle] / You, you make my heart go [whistle] / You [whistle] / You, you make my heart go [whistle]."

Duff's 2014 album was delayed, and at long last, she's "almost finished recording" new material.

"My record is pretty much done, and I'm just waiting. It's tough. I put some music out last year, and right when I put my single out, we started filming the show. So it was a little bad timing because I really didn't get a chance to properly promote my single after being out of the music game for seven years," the pop star tells Time magazine. "But it was good. I feel like I got a little taste of it again and it got me excited."

"The album has taken on a lot of different lives, which I guess is to be expected when you've taken such big break. It is a little bit of electro-pop, a lot of it is just straight-forward pop and some of it has gotten pretty dance-y, which is cool," the musician continues. "Some songs still have a little bit of a folky side."

But enough about her music career!

In Younger, Duff plays a book editor who befriends a 40-year-old coworker (Sutton Foster) who pretends to be a twenty-something in order to re-enter the workforce. The series is quite a departure from Duff's days on Disney Channel's Lizzie McGuire. "We get drunk a lot. We take Molly," she tells Time.

"It's exhausting to act drunk or high all day!" the squeaky clean star admits. "It's a lot of work, but it is fun. And it was nice because we filmed it toward the end of the season, so we were all just being wild."

Duff sometimes pitches the writers and producers ideas, too. "I think I'm the one who will act ghetto more of the time or do funny voices. Sometimes I'm reading the script and I'm like, 'What? People do that?'" the 27-year-old actress confesses. "I am in my 20s, but I have a lot of responsibility in my life."