Former Texas Rep. Beto O'RourkeRobert (Beto) Francis O'RourkeOvernight Defense: 2020 Dems rebuke Trump on Iran deal | Trump appeals ruling on male-only draft | Kudlow claims Iran sanctions won't hike oil prices Castro wants to follow Obama's lead on balancing presidency with fatherhood Poll: Buttigieg tops Harris, O'Rourke as momentum builds MORE's (D) musical talents were apparent again on Wednesday after liberal news outlet Mother Jones published old videos of O'Rourke performing with a band while in full costume — a onesie and sheep mask.

In the video, O'Rourke performs the rhythm guitar part of the classic The Ramones hit "Blitzkrieg Bop" in a New Zealand accent while dressed as a sheep complete with a full mask at a 2003 concert at the now-closed Moontime Pizza in El Paso, Texas according to Mother Jones.

ADVERTISEMENT

The band's gimmick, according to one former member, was to pretend to be a group of famous artists from New Zealand that disguised their looks onstage to hide their true identities.

“Our persona was that we were a very famous band from New Zealand and we didn’t want people to know our true identities — that’s why we wore masks,” Ailbhe Cormack, the band’s former bassist, told Mother Jones. “I think people followed along with the mystery of it, but they knew who we were.”

Video of the performance posted to YouTube had just dozens of views before its discovery Wednesday, according to Mother Jones.

O'Rourke is considered a top potential contender for the 2020 Democratic Party nomination for president, and was listed in a Harvard poll last month as Democrats' third most-popular choice for the nomination behind former Vice President Joe BidenJoseph (Joe) Robinette BidenButtigieg says he doubts Sanders can win general election This is the Joe Biden you rarely see Minorities, older adults push Biden to top of 2020 poll MORE and Sen. Bernie SandersBernard (Bernie) SandersDemocrats' CNN town halls exposed an extreme agenda Buttigieg says he doubts Sanders can win general election Meghan McCain: Bernie Sanders supporting prisoners being able to vote 'bats**t insane' MORE (I-Vt.).

The former lawmaker, who lost a highly-publicized race for Sen. Ted CruzRafael (Ted) Edward CruzCornyn campaign, Patton Oswalt trade jabs over comedian's support for Senate candidate MJ Hegar announces Texas Senate bid Liberal survey: Sanders cruising, Buttigieg rising MORE's (R-Texas) seat in November, has not ruled out the possibility of seeking the party's presidential nomination.

“Amy and I made a decision not to rule anything out,” O’Rourke told reporters after a late November town hall in El Paso.