After lending her voice to two successful songs -- "Joganiyan" and "Sannata" -- this year, Shruti Haasan has sung a song picturised on herself for her film "Gabbar Is Back". What's more incredible is that she recorded the song in one hour without any break.

"Shruti was shooting in the village of Pollachi for one of her Tamil films. In between her film schedules and her numerous brand shoots, she had just half a day to complete this recording. After a two-hour car ride to Coimbatore and then a flight to Mumbai, Shruti landed and went straight into the recording studio," a source told IANS.

"She had prepped the song in advance and had worked on the voicing so that she can maximise her output at the studio. And that's exactly what happened. The music director got what he wanted from her for the entire song within an hour, post which she took a flight back to resume her shoot in Pollachi," he said.

Directed by Krish Jagarlamudi, the film featuring Akshay Kumar in the lead, is the remake of Tamil film "Ramanna".

The film also features Prakash Raj and Sonu Sood in important roles, while Kareena Kapoor and Chitrangada Singh will appear in cameo roles.