His work for Sameer Thahir's second movie 'Neelakasham Pachakadal Chuvanna Bhoomi' (after his directorial debut 'Chaappa Kurishu') in which along with five songs Rex has also sung the title track 'Neelakasham'. "Saptamasree Taskaraha' was Rex's next film, in which he composed songs such as 'Thaane Pookum' and 'Nam Onnaayi'. After that Rex went on to do the background score for 'Picket 43'. He returned after a break with Parava in 2017. Later in the year he composed music for Aashiq Abu's Mayaanadhi. Rex's composition for the film was well appreciated. The song "Mizhiyil Ninnum" became received appreciation and singer Shahabaz Aman won the Kerala State Film Award for Best Singer for the rendition.. His latest releases are Sudani from Nigeria, Thamaasha and Valiyaperunnal.