Elena
Midnight sun (2011)
There are more than one artist with this name:

1) A Catalan pop band from Barcelona. 'Élena', has just released their last album 'Un cafè, setanta matins', where they have shifted from singing in English to Catalan.

2) А female pop-folk singer from Bulgaria. Her full name is Elena Parisheva, born 02.08.1984. She has many hits like Първата, последната, Петък вечер.

3) A pop singer from Romania. Her biggest hit is called "Lumea ta". She features in many songs by DJ Project.