Are We Going (To Participate in the Schools Song Contest 2.015)?

Students of 4th ESO are thinking of participating in the Schools Song Contest of the next year. In order to this, they're looking for a song. These are some of the possibilities:

Kesha - Tik Tok

Taio Cruz ft. Kylie Minogue - Higher

Maroon 5 ft. Christina Aguilera - Moves Like Jagger

Bruno Mars - The Lazy Song

Bruno Mars - Locked Out Of Heaven

Paulina Rubio - Boys Will Be Boys