Nala, who is 4, began sitting on ticket barriers at Stevenage Railway Station, as if to greet the many customers going to and from the Hertfordshire town and London and various other destinations. (Stevenage is 27 miles north of London, and its railway station is on the East Coast Main Line.) It wasn't long before commuters began taking her picture and posting it online.

Nala's owner, Natasha Ambler, set up a Facebook group to collect such photos. (For the record, Natasha and Nala live close to the station, and Natasha is quite happy for Nala to go to the station whenever she wants, which is usually once in the morning and once in the evening, both times at commuter rush hour.) Nala wears a collar with Natasha's phone number on it, and Natasha said that when photos of Nala went viral she would receive dozens of calls a day, so much so that she fitted Nala with a second collar explaining that Nala is not lost but is there at the station with her owner's blessing.

Now, Nala has recorded a Christmas song, written by Joe Killington and Danny Kirsch. Nala also sings in the song, which is titled "Meow." The song has been released to the public, and all proceeds will be donated to the RSPCA and Feed Up Warm Up, a Stevenage homeless charity.

A music video is also in the works.