MUMBAI: These are the ultimate must have's on your iPod, for they are aren't just the hummable ones, but tracks that we feel will stand the test of time, and will remain on your playlist way beyond 2010 too.

Massakali (A R Rahman - Dilli 6)

There are no questions on why this song scores above any other songs else. A trademark Rahman composition, the song was on a perennial repeat on radio stations, music channels and caller back ring tones. Sung by former Silk Route member Mohit Chauhan, Rahman yet again proved that he can make silly invented words sound so hip!

Rehna Tu (A R Rahman - Dilli 6)

Another gem from the same film, the song was delivered by Rahman himself! Rehna Tu has an enchanting tune that grows like wine  Some singers complained about Rahman keeping the best tracks for himself… why shouldn't he? If he ably takes it to another level, and the listeners enjoy it!  

Emotional Atyachaar (Amit Trivedi - Dev D)

Amit Trivedi opened the year 2009 with a bang as Emotional Atyachaar slowy became the catchphrase among city's lovelorn – lets say, this was the years â€?celebratory' break up song  The song came with two versions – brass band and rock, needless to say, the apathy the brass band version offered was matchless      

Kaminey (title track) (Vishal Bharadwaj – Kaminey)

This slow and haunting song has something sticky about it – you just can't get this one off once composer Vishal Bharadwaj starts his long exhale with Kaminey. Besides, veteran lyricist proves why he remains as one of the top writers – who can make an abusive term so melodic other wise?

Iktara (Amit Trivedi - Wake Up Sid)

Not many know that Iktara was composed more than a year before it was released, or that it was never going to a part of Wake Up Sid  Amit Trivedi came on board score background music for the film, but also gave one of the most raw musical gem to bollywood's music lovers. The female version features Kavita Seth while the male version features Tochi Raina – equally well!

Muddi muddhi ittefaq se (Ilaiyaraja - Paa)

It not always that we get to hear the genius Ilaiyaraja working for bollywood, but in his score for Paa he does offer this jazzy breezy number that's hard to ignore  Ilaiyaraja uses Shilpa Rao's husky voice to for the song while his delightful arrangements do the rest of the magic. Not to forget, the song sets a great mood.

Tu jaane na (Kailash Kher version) (Pritam - Ajab Prem Ki Gajab Kahani)

What Kailash Kher does to this song is matchless. His acoustic take on the song paried with his raw vocals – phenomenal! Is there anyone else who can pull this off?

Pesa Pesa (RDB – De Dana Dan)

Sung by UK based Punjabi music exponents RDB, their popularity is rising when it comes to bang bang beat music. Love it or hate it, but Pesa Pesa has an ability to hit the human groove neuron. Not doubt, once the stressed out train travelers have put this on, the enthusiasm returns. .. magically     

Kurbaan Hua (Salim Sulaiman - Kurbaan)

This song by Vishal Dadlani changes the mood altogether. Heavily loaded with effects, loops and strong basslines, this one is full of energy – the sound is same as that of Pentagram – easily one of the best out and out rock songs of the year.

Alisha (Salim Sulaiman - Pyaar Impossible)

Anoushka Manchanda delivers this trendy rap infused number with panache. And Salim Merchant as a singer gets better and better – it's impossible to let this one go of the hook  Though it does remind of the many Rahamanic arrangements, this one deserves to be on the list to pep your mood.