[2] The earliest indication that he would be releasing a retrospective album came in October 2010 when it was revealed he had recorded a new single titled "Who's That Girl".

[13] The release of Twenty Ten completed Sebastian's original contract he signed when he first won Australian Idol in 2003.

The lead single "Who's That Girl" featuring Eve is a dance flavoured electro R&B song, a change in style for Sebastian.

[19][20] "All I Need Is You" is a pop song written by Sebastian before he entered Australian Idol, which also reached number one and achieved platinum certification.

"Out with My Baby", co-written with Robin Thicke, is an uptempo funk R&B song which became Sebastian's third number one single and was certified platinum.

His third album Closer to the Sun was a mix of a number of different genres including pop rock, R&B, jazz and soul, and was co-written mainly with Australian songwriters.

"Like it Like That", a soul infused track with a surf-pop feel became Sebastian's fourth number one single and was the highest selling Australian Artist song in 2009, eventually reaching 4× platinum certification.

"[29] "Art of Love", a R&B ballad featuring Jordin Sparks, was a top 10 double platinum certified single.

For example, "Elevator Love", originally a pop/rock track, now has a reggae lilt, and the once effervescent pop "All I Need Is You" becomes a slowed down soul ballad.

[36] After The X Factor finished Sebastian made a short promotional trip to Auckland, New Zealand, for an instore appearance and media interviews.

The Interview which screened on Network Ten on 14 December, Winfrey was shown in the front row of the audience while Sebastian was singing "Who's That Girl".

[41] Sebastian sang for Winfrey a second time when she requested he perform at her private crew wrap up party before she left Australia.

[49] In November 2011, Sebastian performed at the ARIA Awards for the second year in succession, where he sang a medley of "Who's That Girl" and his most recent single "Don't Worry Be Happy".

Jamie Horne, a music reviewer with The Border Mail said, "The inaugural winner's longevity (he has released five albums) can be attributed to the fact that he's an accomplished musician and songwriter [...] A 10-track acoustic disc with the hits reworked (check the swinging take of Like It Like That) and a couple of newies including the dancefloor-ready Who's That Girl with US rapper Eve should make it clear that the former 'Fro' is not that uncool after all".

[57] Chris Havercroft from X-Press Magazine said, "He dabbles in throwaway pop with Elevator Love and shows off his Memphis chops with Hold on I'm Coming.

It is the dancefloor where Sebastian does his most damage and when teaming up with rapper Eve for new single 'Who's That Girl' he shows his knack for targeting his audience.

Love him or loathe him, upon listening to Twenty Ten it's hard to deny that Sebastian has quite the set of pipes on him".

[58] The Daily Telegraph music editor Kathy McCabe wrote, "Sebastian has matured into a genuine hitmaker, his gift with melody so finely-honed he can pretty much punch out a catchy number in his sleep.

"[59] AllMusic reviewer Jon O'brien said, "it's a testament to his vocal abilities and songwriting skills that, unlike many of his fellow winners, he's remained popular enough to see out his rather ambitious Sony contract, scoring five number ones since his victory in 2003.

This comprehensive two-disc, 30-track collection, which reveals a subtle and natural progression with each album, explains why he's managed to survive once the show's publicity machine died down.

[64] It became the fifth highest selling Australian artist album in Australia in 2010 within six weeks of release and achieved 2× platinum certification in 2014.