MORE than 100 people queued for the chance to get a paw-tograph and picture with the underdog with the overbite.

Tuna the “Chiweenie” has stolen the hearts of millions of people worldwide with his cheeky chops, racking up 1.7 million Instagram followers.

So when the four-year-old Chihuahua-Dachshund cross arrived in Oxford on Thursday hundreds took the oppor-tuna-ty to meet him.

Crowds of all ages formed a queue through Blackwells bookshop in Broad Street to get signed copies of his Paw-tobiography – Tuna Melts My Heart.

The book is collection of pictures giving an account of a day in the life of Tuna.

While owner Courtney Dasher signed the books with a paw print from Tuna, the social media star was passed around for photographs with his fans.

Twins Thomas and Hannah Wilson from Abingdon got to meet the rescue dog with mum Karen.

Hannah said: “I think he’s really cute.”

But Tuna got a surprise of his own, when one girl brought along her own Chiweenie, Louis, to meet him.

Elsa Hobart said she has liked Tuna since she first saw his pictures online.

The nine-year-old added: “He is even cuter in person than in the pictures.”

Ms Dasher, 34, from Los Angeles, who adopted Tuna after an animal charity found him in the streets of San Diego, said the pair have really enjoyed their trip to Oxford.

She added: “Everyone has been exceptional.”

Signed copies of the book are still available from the store.