Conan asked Jennifer about singing the ballad The Hanging Tree in the last film that reached number 12 on the Billboard Hot 100 chart.

‘First of all, if I had gone [fart noise made with flapping arm] ”Hunger Games”, it would have reached number one,’ she claimed.

The Oscar-winning actress then revealed that singing in front of people was her biggest fear.

 

She’s a singer: The actress later broke into song as performed a version of Cher’s song Believe

Liam, 25, chimed in that Jennifer ‘likes to sing on occasion.’

Jennifer admitted she liked singing Cher and after a quick countdown by 22-year-old Josh she burst into the 1998 song Believe.

‘I can feel something inside me say, I really don’t think you’re strong enough,’ Jennifer crooned before throwing her arms out for a big finish.

Belting it out: Jennifer belted out the Cher hit as co-star Josh Hutcherson provided backing vocals

Convention show: Show host Conan O’Brien earlier in the day moderated a Hunger Games panel at San Diego Comic-Con with Jennifer and her co-stars Josh and Liam Hemsworth

Popular franchise: Liam and Josh leaned in as Jennifer performed

 

Conan earlier brought up Jennifer’s reputation for using foul language.

‘I’m just learning this about myself,’ she quipped as Josh and Liam smiled knowingly.

Conan challenged Jennifer to a cussing contest for charity donating $100 for every swear word she could utter in 30 seconds.

Potty mouth: Jennifer acted coy when Conan brought up her reputation for using foul language

Swear jar: Conan brought out a swear jar and challenged Jennifer to a cussing contest for charity

Getting ready: Jennifer cleared her throat as she prepared to unleash a stream of expletives

Jennifer lived up to her reputation as she finished with a flurry of expletives that were bleeped out.

Conan then pledged to donate $10,000 to a charity of her choice.

The Hunger Games: Mockingjay – Part 2 will hit theaters on November 20.

Catch Conan Mondays-Thursdays at 3am on truTV

Crying face: The Hunger Games star made a crying face while speaking during The Hunger Games panel

Fan frenzy: Fans lined up to take pictures of Jennifer outside the Conan show

SOURCE: DAILY MAIL