"Porque Eu Sei que É Amor" is a single by Titãs, released in July 2009. It is composed by Sérgio Britto and Paulo Miklos and sung by the latter. The song is featured at the soundtrack of Rede Globo's telenovela Cama de Gato. The song reached No. 14 at Brasil Hot 100 Airplay and No. 8 at the Brasil Hot Pop.