Jason Derulo and Jordin Sparks attend "American Idol" Season 11 Grand Finale Show at Nokia Theatre L.A. Live on May 23, 2012 in Los Angeles, California. Credit: Jeffrey Mayer/WireImage.com

Lately, pop stars Jordin Sparks and Jason Derulo have been talking about the ultimate collaboration: their wedding!

Former American Idol winner Sparks, 22, opened up to Us Weekly on the red carpet at City of Hope Honors Halston's Ben Malka bash in L.A. Wednesday about her year-long romance with the R&B crooner -- and revealed that they're already talking marriage.

"It's not a conversation that we're scared about," Sparks explains. "Before, we both went through tragedies this year -- he broke his neck and then [Sparkle costar] Whitney [Houston] passed -- so before it might have been a little too crazy." (While practicing choreography for his tour in January, Derulo missed a landing and fell on his neck, fracturing one of his vertebra. Doctors reportedly told him he "could have" been paralyzed. Sparks' onscreen mother Houston died on February 11 at the age of 48.)

Sparks says the couple's priorities shifted after they took some time to reflect on the year's events.

"You really see the people you love and you go, I don't want to lose you," she explained. "So, it's a conversation we have, but we're not in a rush."

Although it might be a little while before wedding bells ring for the pair, Sparks says she'll be thrilled whenever Derulo, 23, decides to pop the question.

"I hope he does!" Sparks exclaimed. "It's not happening yet, but I hope so!"