I feel like if they release "It Takes Two", the song is going to be one of those songs people will cover on shows like The Voice and AI, like someone said it kinda burns so fast but it's another side of Katy that the GP will probably like. After Bday and TIHWD 2 carefree songs I think it's time she releases a more mature song.
But I'll be happy with whatever song she picks tbh.