Thus far the duet are grabbing full crowd in their concert but they don't sing together in their presentations, the Spaniard said that they're likely to do so not far down the road.
The singer told EFE via e-mail that the idea doesn't spring from "anything in particular, we've recorded several things together but it must be like Jennifer says, that I'm too much of a perfectionist - but I'm positive we'll do a number together and may it be soon".
"Meanwhile we're really enjoying the tour," the 37-year-old singer said after the two concerts he gave this weekend with Lopez and rap duo Wisin & Yandel in Newark, New Jersey.
