Flip through old pictures of Alexis & Fido, and you'll see that Alexis isn't always smiling.

But that may all change now since the rapper got a new set of teeth. In an interview with TV y Novelas, he jokes that the only thing new about him was his new hair. He placed his fingers on his bald head before explaining that he got new teeth.  

Well, not before he got one more joke in.

"It shines more now," he said. "It's whiter. Not it's a joke."

He said that it was thanks to God he was able to get his new teeth and that it was time for him to do so.

"I'm super appreciative," he said. "I feel super comfortable. Now I can smile without having to do anything. I feel very good."

The interviewer also mentioned that he looked thinner, and he said it's likely a result of how much work he and Fido have been doing, which sometimes means they don't eat enough.

The whole interview was marked with funny little moments. When asked what he would change about Fido, Alexis said he would change his Obey hat and get him a haircut. Also, he thinks that he needs a longer beard.

But what else can be expected from a video interview that starts with Alexis' impromptu rap to the TV y Novela audience?

Last month, the duo worked with RadioShack on a program that worked to help Latino youth accomplish their dreams.

"We are going to help these young people giving them advice and guidance to help them take their first steps in this artistic medium," Fido said. "This is our way to give back to our fans a little bit for all the support they have given us in our career."

Alexis added that, though they can't show people how to create success, they can show them how discipline plays a huge role in music. Also, their goal was to teach the children how to find their own originality.