Selena Gomez's mother is pregnant.

Mandy Teefey - who divorced Selena's father, Ricardo Gomez, when the 'Love You Like A Love Song' singer was five-years-old and married Brian Teefey in 2006 - is expecting her second child later this year.

Selena announced the news on her Twitter page by sharing a picture of her and her pregnant mother and writing a sweet Mother's Day (12.05.13) message.

She wrote: ''Hope all the amazing moms had a great day! I have the best momma in the world :)) I love you so much! (sic).''

Meanwhile, Selena recently revealed her rider for her upcoming 'Stars Dance' world tour includes pickles and incense.

She said: ''[I have] incense, pickles always. I don't know. I actually have a boring rider.''

''I'll be honest...ramen. That's what I have. I'm more about food and apparently incense.''

Selena also shared her inspiration behind the tour name.

She said: ''It's actually a track on the record and I just felt it was a perfect name for every track that's on the album. They have their own individual stamp and style to it, but with this tour and wanting to incorporate more of the performing aspect, I thought it was the perfect way for kicking it off.''