Oceniono na 5 z 5 możliwych gwiazdek

Поиск по ласт.фм, что и требовалось :)

Oceniono na 5 z 5 możliwych gwiazdek

Exactly what I was looking for, it simply adds last.fm as your search engine.

Oceniono na 5 z 5 możliwych gwiazdek

This does exactly what you would expect (search on last.fm site).
By the way, I don't like having to install an extension to do this, it's just a simple search string