Christina Aguilera and Jimmy Fallon busk in disguise in New York subway

During her interview on the 'Tonight Show', Fallon reminded her mid-way that her new album 'Liberation' had officially released. Stream it in full below.

                            Christina Aguilera and Jimmy Fallon busk in disguise in New York subway
(L-R) Christina Aguilera and Jimmy Fallon (Source: Getty Images)

Today marks the release of 'Liberation', Christina Aguilera's first album in six years. To celebrate the event, Aguilera joined host Jimmy Fallon and donned a disguise while busking in the New York subway, on Thursday's 'Tonight Show' Rolling Stone reports. Midway through the episode, as Fallon paused to remind Aguilera during the interview, the pop star's eighth studio LP officially arrived on all streaming services.

Aguilera wore a wig and a face-obscuring hat for what would turn out to be a not-so-incognito performance. Just moments into their cover of Aretha Franklin's 'Think,' it's evident that the iconic voice booming out of this subway performer is unmistakably Aguilera's.

Before the buskers even hit the first chorus, a sizeable crowd gathers and whip out their cellphones to capture the unique performance. With the disguise proving ineffective, Fallon and Aguilera shed the costumes and continued to entertain the onlookers with an acoustic rendition of the singer's hit single 'Fighter' from her 2002 album 'Stripped'.

'Liberation' is Aguilera’s first major release since 2012’s 'Lotus', and it marks her eighth full-length record to date. It’s not as though she’s been twiddling her thumbs in the interim, however! She’s done some acting, spent seemingly endless seasons as a coach on The Voice, collaborated with other artists (including A Great Big World, a collaboration that earned a Grammy), and also got on with the business of having a family.

The new album marks the comeback of the former pop queen and boasts collaborations and guest verses from a string of A-list collaborators. 'Liberation' contains 15-tracks, including the previously-released 'Like I Do' featuring rapper GoldLink; 'Accelerate' with hip-hop stars Ty Dolla $ign and 2 Chainz; and 'Fall In Line' with star guest vocalist Demi Lovato.

Also, Jamaican dancehall singers Keida & Shenseea appear on 'Right Moves' and rapper XNDA makes a guest appearance on 'Pipe.' According to CoS, two of the 15 tracks see production credits for Kanye West. Aguilera will also support the new album later this year with a 22-city North American tour, her first since 2008.