'Dancing With the Stars' first elimination sends fan favorite home

(Spoiler alert: Please do not read if you haven't watched Monday's episode of "Dancing With the Stars")

The 20th season of ABC's "Dancing With the Stars" had its first casualties on Monday.

It is never easy to be the first one to go, and this year the unfortunate honor went to Redfoo of the electronic dance music group, LMFAO.

The crazy-haired singer's elimination was due to a combination of judges' scores and viewer votes after he was tied at the bottom of the board last week with model Charlotte McKinney, both scoring 22 out of 40.

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However, the Carl's Jr. spokesmodel had more fans dialing from home and it was Redfoo and his partner, Emma Slater, who were sent packing.

Redfoo voiced his anxiety about last week's poor performance before taking to the stage. "It is concerning and it is motivating," he told the ABC cameras during rehearsals. "I don't think anyone really knows how much I want this. They see the fro and they see the glasses and all this stuff, but I am serious."

"Sometimes you just need a little of a fire to get going," said Julianne Hough.

While the pair earned a solid score of 31 for their jive, their ejection at the end of Monday's episode sparked loud boos from the disgruntled audience.

"You've got to vote, guys," host Tom Bergeron reminded viewers. "This is somebody who did a great job and because of viewer votes … and a tenth of a percent, a tenth of a percent."

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Also finding themselves in the bottom four were Suzanne Somers and "Bachelor" star Chris Soules.

Willis' "Charlie's Angels: Full Throttle" star mom urged all her fans to vote for her dancing daughter on Twitter.

Rumor has it….time to get ready to Cha-Cha!! #DWTS Tune in and VOTE #TeamValenRue 855-234-5610 pic.twitter.com/09mi9Bp7ae

— Demi Moore (@justdemi) March 23, 2015

Meanwhile, Redfoo's rejection prompted an angry reaction on Twitter.

Read some of the messages below.

I'm so upset for @EmmaSlaterDance and @RedFoo They really deserved to stay, esp after their energetic fun jive, but we'll see them in finale — Cyn (@SoarinCyn) March 24, 2015

So sad @RedFoo was eliminated. Can't express my feelings in 140 characters. #TeamFooma @EmmaSlaterDance @DancingABC #DWTS — Hannah Gross (@hannahhgross) March 24, 2015

I'm not a fan of Redfoo but even I'm pissed he was eliminated. The Bachelor should have gone home. #DWTS

— Letissia Scott (@LetissiaScott) March 24, 2015

I hope #DWTS brings back @RedFoo and has a doub elim later instead. He showed dedication & improvement. @DancingABC don't eliminate at wk 1

"Dancing With the Stars" airs Mondays at 8 p.m. ET on ABC.