Actress Gauahar Khan, who has created a boom in Bollywood to the television industry, has expressed happiness recently. She expressed this happiness with one of her songs, in which she appeared with her ex-lover ie Kushal Tandon. She had a song in 2014 which was sung by Rahat Fateh Ali Khan. The lyrics of this song are 'Zaroori Tha', which people liked very much. The evidence of this has also been found. The song has been included in the One Billion Club due to its high popularity. I am soooo fortunate to have been a part of this monumental project । Thank u for the love । @RFAKWorld @DevrajSanyal @KushalT2803 #rahulsud https://t।co/px80NuUM08 — Gauahar Khan (@GAUAHAR_KHAN) January 5, 2021 Gauahar Khan and Kushal Tandon have expressed happiness over this. However, the duo's song is part of the music album 'Back 2 Love', which was released worldwide in June 2014. Recently, Gauahar shared this good news on social media with his fans and wrote in the caption, 'I am very lucky to be a part of this fortunate project, thank you for love'. Apart from her, Kushal Tandon also re-posted a video of the song 'Zaroori Tha' on Instagram, and wrote in the caption, 'What am incredible way for all of us @universalmusicindia to start 2021 by joining the "billion view club" with @ officialrfakworld's #Zarooritha A song that's transcended age, genre & time over the past few years to become a love ballad of the ages. It is a big win for non-film music to be counted in a stronger & more revered category of commercial music in India '. Famous singer Rahat Fateh Ali Khan has also shared a post expressing happiness. Also Read- Neha Kakkar is seen working in kitchen after marriage, See pics Gauahar Khan will not do bold scenes after Nikah Bigg Boss 14: Friends and family members of contestants will enter BB house