I like to listen to music in attempts to learn the rythm of word / sentence pronounciation. Music is naturally very rythmic and the natural tendency to hum the music is a painless way to get the repetition required to memorize words and pronounciation. Have you ever noticed how singers whom English is a second language seem to do so well speaking English?
You can listen to Brazilian Radio Stations by going to this page. This is part of how I’ve learned portuguese.
Or Download and listen to some original Brazilian music here