That was Bono with Ivete Sangalo, who is probably the most popular singer in Brazil. She sings a style of music called axé and gets maid millions to induce people into uncontrollable dance spasms here in Brazil.
I was at the Sao Paulo II concert and from what has been going around, U2 has won the hearts of Brazil and blew most people away.
The station that showed their concert is Globo, and I kid you not, 97% of the country watch this station religiously. So U2 got massive exposure here and the Brazilians are eating it up that they are partying like this. Great for them!!!!