The new budding relationship of former 'High school musical' star Zac Efron and girlfriend Sami Miro was on display last Thursday night rocking out some Karaoke classics in West Hollywood, California. The two apparently had more energy that night that had them singing way past 1:00 in the morning.

Several spotted the famous Hollywood actor, Efron arriving at the famous hotspot, Blind Dragon, doing some autograph signing. Afterwards, the actor apparently wanted to go and exercise his 'High school Musical' vocal muscles and went to a private Karaoke room.

The actor reportedly sang some pretty upbeat classics like, 'Fly' of Sugar Ray as well as 'All Star' by Smash Mouth. From 11:00 pm until about past 1:00 am, when Efron's girlfriend Miro arrived, the actor kept singing and dancing to reggae music.

When Miro arrived of course, Efron was reportedly seen quite busy with her girlfriend being sweet to her. "They were lovey all night, kissing, holding hands," an eyewitness shared with E! News, "He seemed to be in really good spirits," the witness added.

It seems like Efron found himself a new Karaoke buddy and it's not Vanessa Hudgens. The new to the public's eyes, Miro previously expressed how much different it is being with Efron.

Apparently, being with a Hollywood actor doesn't give one much privacy. "I've never spoken about us before, but, um, it's definitely different," Miró recently told Elle when asked about her high-profile romance. "I think that you have to take that with a grain of salt, and put yourself in other people's positions."

She added, "I think that's actually a really big part of it, putting yourself in their shoes, and trying to understand where they're coming from, and then it kinds of makes sense." The two previously attended the 2015 MTV Movie Awards together as a couple.