They're already the parents of 1.5 year old Luna, but musician John Legend and everyone favourite no-nonsense Twitter celeb Chrissy Teigen have announced that they're expecting again.

They shared the happy news on Instagram, where they enlisted Luna to help them announce it (alongside a typically wry caption from Teigen):

Although the pair had previously come in for criticism by some social media trolls for revealing that they had selected Luna's gender via their IVF treatment, people are very happy for them, too...