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Eminem's Surprise Appearance At Rihanna's L.A. Concert Wows Fans

Fans also call Ke$ha's set 'crazy,' 'wild.'

[artist id="1940303"]Rihanna[/artist] and [artist id="502642"]Eminem[/artist] took their partnership off the [article id="1643919"]music video set[/article] and onto the stage at the Staples Center in Los Angeles Wednesday night when Em joined his [article id="1641027"]"Love the Way You Lie"[/article] collaborator during the L.A. stop of her. [article id="1641567"]Last Girl on Earth Tour[/article].

And it had fans raving when MTV News caught up with them after the show.

"The whole night was amazing! Rihanna: Amazing!," Rafael Saghian raved. "The fantastic part was Eminem. We loved it. We come all the way from Rio de Janeiro, Brazil!"

Describing Em's appearance as "da bomb," fans loved seeing the two sharing the stage. "When Eminem came out that was friggin' amazing," Sean Preston said.

But, fans also gave it up to Rihanna's sparkly opening act, [artist id="3213641"]Ke$ha[/artist]. "She was crazy. She was wild," Nina and her pal, Aliza, explained. "In the middle of dancing she just did a huge cartwheel! She had a huge star around her eye, amazing."

Amber added, "I like the fact that she's a new young artist and she's fresh and she's lively and very outgoing."

And of course Rihanna got a lot of praise. "Her dancing, her outfits, her voice," Nina said of the set's highlights. "That red hair she had tonight, it was amazing."

Nick Locke loved when Rihanna sang her hit "Rude Boy." "Oh my god! She killed that song. She blew it out of the water. I had so much fun!"

Javante Clark summed up Rihanna's show in a unique way: "She's like an exotic animal to me," he said. "She's so pretty."

Have you seen the Rihanna Last Girl On Earth tour this summer? Tell us about it in the comments!