Here at M we are completely obsessed with guessing games. We've played guess who's older, guess which co-star is older, and guess who's taller in recent weeks. Now, we're celebrating Nathan Sykes and Ariana Grande's new relationship by rounding up a special couples edition of guess which celeb is older.
Is Nathan older than Ariana? What about Bella Thorne and Tristan Klier? Carlos Pena and Alexa Vega just announced their engagement but who was born first? Click through our round-up to find out!
Play the guessing game by clicking through the gallery. Tell us your score in the comments!
