Shaan made his debut as a music director in the 2009 film Ee Pattanathil Bhootham directed by Johny Antony.

He got the chance to work in the film after the wide acceptance and popularity of his 2008 music album "Coffee at MG Road" which he did along with his friend, singer and director Vineeth Sreenivasan.

He has gained popularity with films such as Thattathin Marayathu (2012), Ormayundo Ee Mukham (2014), Aadu (2015),Oru Vadakkan Selfie (2015), Adi Kapyare Kootamani (2015), Vettah (2016), Jacobinte Swargarajyam (2016), Annmariya Kalippilaanu (2016), and the song Jimikki Kammal from the film Velipadinte Pusthakam (2017) gained nationwide acceptance with so many alternative versions of it being released online.

Its music was positively received by the public[3][4][5] and composer M. Jayachandran went on to state that "Muthuchippi Poloru" was his favourite song of the year.

[8] Remake of Thattathin Marayathu Shaan Rahmaan is also a singer and has sung songs composed by himself and for music director Deepak Dev in films like Urumi, Teja Bhai & Family etc.