Nolok Babu, the first champion of the first ever singing reality show of the country,  "Close Up One Tomakei Khujchhe Bangladesh (2005)", paired up for a song with Moushumi Akter Salma, champion from the second season of the same show.

The song, titled "O Dulabhai", is penned by Omar Faruk Farhan, while the music is arranged by Rohan Raj.

The track was recorded on September 6.

"Salma is very dear to me, like my sister," said Nolok. "The song portrays the sweet and sour relationship between a brother in law (dulabhai) and his sister in law. I hope people will enjoy this track as it is quite different from what we usually have in music."

Earlier in 2008, they worked together in the album "Matir Tara".

"It feels great to collaborate with Nolok bhai after 13 years," said Salma. "The song, apart from being interesting, reflects village life, which will attract people I am sure."

The singers further shared that "O Dulabhai", will be released along  with a music video on the official YouTube channel of D&M entertainment on September 15.