Lauryn Hill made an unannounced appearance at the highly touted celebration of Bob Marley's 60th birthday in Ethiopia's capitol Addis Ababa.

According to Billboard.com, last night (Feb. 6), the singer/songwriter performed two new songs, "Walk" and "Politician's Spirit," accompanied only by an acoustic guitar. Hill, the daughter-in-law of the late reggae great, also performed "War in the Mind," from her 2002 MTV Unplugged set.

"I learned a lot from this trip," she said in Addis Ababa last week. "It was purposeful. I only decided to perform at the last minute. I think I underestimated the need for black people to see other black people walking in confidence and truth."

The impromptu set was a part of the Africa Unite concert, which marked the first time the annual Bob Marley birthday celebrations were held outside of Jamaica. In front of an estimated audience of more than 300,000, the concert also featured the singer's widow, Rita Marley, his 78-year-old mother, the legendary Cedilla Booker and his  five of Marley's sons, Ziggy, Stephen, Damian, Julian and Kymani,

Africa Unite will be an annual event held in a different African country each year, before returning to Ethiopia in 2015 for Marley's 70th birthday.

As previously reported, Hill still working on a studio album to follow-up her classic debut, The Miseducation Of Lauryn Hill, recently tapped the production talents of Kanye West. She also revealed the album will have heavy spiritual and political tones. No release date has been announced.