Patricia Day is a Danish musician best known as the lead singer and bass player of the rockabilly/psychobilly band HorrorPops.

Patricia Day began her musical career performing with the Danish punk rock band Peanut Pump Gun.

She met Nekromantix singer and bassist, Kim Nekroman, at the 1996 POPKOMM festival in Cologne, Germany, when Peanut Pump Gun opened for his group.

Despite both belonging to the subculture scene of Copenhagen, Denmark, the two had never met before, but they became friends over their mutual interest in alternative music and the two eventually married.

They eventually chose Niedermeier to drum, a friend of Day's and a member of the band Strawberry Slaughterhouse, and officially started HorrorPops in 1998.

In 2000, Day recruited two friends, Mille and Kamilla Vanilla, co-workers at the body piercing shop she worked at to act as go-go dancers for the band's live show.

With the band always finding humor in things and wanting to please 'the moms', HorrorPops ended up with a trendy and very funny article in Vogue.

The Offspring was just about to head out on their month-long European tour, and with a three-day warning, HorrorPops got offered the chance to join them as main support.

Shortly after the European tour ended, Horrorpops returned to the states to play Jimmy Kimmel Live and a few California shows.

The band's second album, Bring It On!, was released on 13 September 2005 and featured their new rhythm guitarist Geoff Kresge.

On 23 December 2010, Day filed a lawsuit in an Indianapolis federal court against the Hard Rock casino, charging infringement of the right of publicity and false endorsement.

In her lawsuit, the HorrorPops singer claims Hard Rock and Mattel have been selling a Barbie doll in her image without her authorization.

Day uses nylon bass strings and a Gallien-Krueger 1001RB head and 4X10 cabs to push out her sound while on tour.