David Hasselhoff's new ad is so David Hasselhoff, with nods to 'Baywatch,' his singing career and 'Knight Rider'

What did you do today?

Whatever it was, it was not as awesome as David Hasselhoff’s day, in which the Baywatch alum practiced his opera singing skills, shuffled around his pool in slow motion — just as he did on his long-running show — and canceled winter.

Hasselhoff celebrated his Hoff’s Day Off campaign for Happy Socks’ new spring and summer line of swimwear and beach accessories for men and women, and it’s a lot of fun, with references to Baywatch, ‘80s hit Knight Rider, his singing career and more.

“The [Happy Socks] guys are from Sweden, where I did my own television show, Hasselhoff — en svensk talkshow, which was really like The Dean Martin Show,” Hasselhoff told Fashionista. “It was a big, big success. It was up for a Kristallen award, which is [like a Swedish] Emmy. So I really fell in deep like with the guys.”

The Hoff has long had a strong international audience.

“When I was shooting it, I was telling the guys, 'let me play off the Hoff.' 'Knock Your Socks Hoff' — 'Let Hasselhoff Rock Your Socks Off' — was going to be one of the titles of my last tour. So was just natural to come up with 'Hoff' stuff: 'Taking a Day Hoff' and 'Happy Hoff.' They were like, 'Well, do whatever you want.' So I did and they loved it. I sang 'HOOOOFFFFF' [in a booming operatic voice] and 'taking the day Hoff.' I was dropping my red shorts putting on the polka dot ones. Basic ideas of what to do.”

Polka dot shorts and other items are now available through Happy Socks’ online store. Here’s a look:

Big Dot Swim Shorts, $65

Dot Swimsuit, $75

Parrot Swim Shorts, $65

Ice Cream Swimsuit, $75

Pool Slider Happy, $38

Floaty With Dots, $48

Hasselhoff will be back at work soon. He’s working on a new album set to include heavy metal songs.

Yahoo Entertainment may receive a share from purchases made via links on this page.

Read more on Yahoo Entertainment:

• Meghan McCain says ‘no one believes’ President Trump cares about prisoners of war

• Gabrielle Union cheers on Dwyane Wade's son at gay pride parade

• Halsey considered prostitution as a homeless teen, she says in heartbreaking speech

Want daily pop culture news delivered to your inbox? Sign up here for Yahoo Entertainment & Lifestyle’s newsletter.