Looks like Lily Collins has got Nick Jonas in chains for her love!

Just two days after a source told ET that the two were dating, ET chatted with the pop star on the red carpet at the ESPN The Party event held ahead of Super Bowl 50 in San Francisco, California, where we caught him blushing at the mention of his 26-year-old brunette beauty.

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"I hate to say it, Nick, but your love life is always in the headlines. Can you comment on the Lily Collins rumors?" ET's Sophie Schillaci asked.

As a huge smile emerged on his face, a coy Nick responded, "I can't at all. At all."

Clearly there was no need for words -- his adorable facial expression said it all! Nick did flash ET a peace sign, though, which was equally as cute.

Nick, 23, wasn't as timid when it came to talking sports, however. The "Chains" singer is a big fan of the New York Giants, and he admitted that he was feeling anxious ahead of his performance inside the star-studded party, as a number of athletes from the NFL would be inside.

"I'm a huge sports fan, especially football. Unfortunately, my team didn't do too well this year, but I think [Giants wide receiver] Odell Beckham Jr. is here," the New Jersey native explained. "I'm excited as a Giants fan, so we'll see if that happens."

"It's going to be a good crowd," he continued. "[It's] one of my favorite parties to attend over the last couple of years... to actually get to come perform this year will be fun."

Fun, indeed!

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Inside the party, Nick undoubtedly had a blast, kicking off his performance around 12:30 a.m. with a speech aimed at getting the audience hyped. "Are you drunk enough yet?" he asked the crowd and later shouting, "I love my job. We're having a f**king good time tonight, so if you're here to party with us, let's hear ya. Let's go!"

He kept the celebrations going all night, raising a shot glass to "celebrate good times" before performing Sage the Gemini's song, "Good Thing," which Nick is featured on.

Nick also belted out a number of cover songs, including Michael Jackson's "The Way You Make Me Feel," Drake's "Hotline Bling," The Weeknd's "Can't Feel My Face" and Bell Biv DeVoe's "Poison." His brother, DNCE frontman Joe Jonas, even came onstage at one point. The two performed "Cake By the Ocean" before Nick closed the show with his hit, "Jealous."

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Following the party, Nick took to Twitter to reminisce on the "blast" of a night he had.

To hear more about Nick and Lily's new romance, watch the video below.

Reporting by Sophie Schillaci