Once again, Mario is on the road performing as a singer and wishing he had more time to rehearse as a dancer for ABC's Dancing With the Stars.

Last week, he was in New York doing a benefit concert and worrying about whether or not he was going to get the quickstep right in his Monday night performance.

This week, he's in Florida doing a concert in Miami, appearing at BET's Spring Bling and fretting over the tango that he and partner Karina Smirnoff will do Monday night in week 3 of the hit series.

"Honestly, this is the week where I wish I had the most rehearsal, because we're dancing the tango to a song called 'Roxanne' from the movie Moulin Rouge, and there is just so much I want to bring to the dance," he said today.

"What surprised me about the tango is how theatrical it is. I'll be able to do some acting in this dance -- I'll finally be able to pull from some different personalities to do this performance. It's, like, very seductive, there's betrayal, and it's an assertive dance unlike the others. But at the same time, the posture and the form and the low knees -- all of that stuff is the same. It's a definite challenge."

But performing in concert on the road cuts into rehearsal time in Los Angeles. It didn't seem to hurt him and Karina last week -- they were once again lights out.

And this week, they have a secret: Karina's gone with Mario to Miami so that they can still get time together in the rehearsal hall.

"The good thing about Karina is that she is so dedicated to teaching me that she's traveling with me."

Above: ABC Photo of Mario and partner Karina Smirnoff