You can laern Mandarin by songs if you like singing.But you have to go for the website that provides pinyin.If you having some Chinese background, you can learn some songs from dramas, film, or your favourite artists.
Here is a famous song "Happy Birthday"
zhu ni sheng ri kuai le
zhu ni sheng ri kuai le
zhu ni sheng ri kuai le
zhu ni yong yuan kuai le
