You don´t have to learn every language tama
There´s no need to. Just listen to their songs from time to time. I´ll do the rest
[youtube=425,355]DqRdPaQkF7c[/youtube]
[youtube=425,355]JO7I655w6Yg[/youtube]
They´ve got nice dancing skills too. Hooray for multitalented twins!