In December 2017, Anitta released "
Vai Malandra", a
funk carioca collaboration with
Maejor, Tropkillaz, MC Zaac and DJ Yuri Martins as the conclusion of her
Check Mate project. The song instantly became a hit, receiving over one million plays on
Spotify on its first day of release and breaking the record for the most streams received in a day in Brazil – held previously by
Taylor Swift's "
Look What You Made Me Do". On its second day of release, the song was played more than two million times, surpassing once again the record for the most streamed song in a day in Brazil. Due to the amount of streams received on its first days of release, the song even debuted on the Global Top 50 chart in Spotify and became the first song in Portuguese to hit the top 20 on that chart on December 20, 2017. In 2019, Tropkillaz announced a new collaboration with Anitta and MC Zaac titled "Bola Rebola", which also was announced to feature Colombian recording artist J Balvin. According to Tropkillaz, Anitta contacted Balvin and asked him if he would join the song, to which he accepted. The produced duo intended to release the song in time for the
Carnival of 2019 so it could become "the carnival anthem". The song instantly became a hit and was the most streamed song on Spotify in Brazil for over 30 days.{{cite web|url=http://portalpopline.com.br/bola-rebola-completa-30-dias-na-lideranca-do-spotify/ ==Track listing==