Successfully complete the indicated task to unlock the corresponding song:

Crazy In Love: Get 5 Platinum Records for 5 songs. 
Dance Like There's No Tomorrow: Get 20 Platinum Records for 20 songs. 
It's Not Over: Get 10 Platinum Records for 10 songs. 
Since U Been Gone: Get 2 Platinum Records for 2 songs. 
Wait For You: Get 15 Platinum Records for 15 songs.