Answer the question at the end by quoting:

Born and raised in Mbewuleni, Cape Province, Union of South Africa, Mbeki is one of four children of Epainette and Govan Mbeki. The economist Moeletsi Mbeki is one of his brothers. His father was a stalwart of the African National Congress (ANC) and the South African Communist Party. He is a native Xhosa speaker.
Together with Oliver Tambo, Mbeki left London for Lusaka in April 1971 to take up the position of assistant secretary of the ANC's Revolutionary Council (RC). This was the first time in nine years that Mbeki was setting foot on African soil. The aim of the RC at this time was to bridge an ever-widening gap between the ANC in exile and the people back home. In Lusaka, Mbeki was housed in a secret location in Makeni, south-west of the city. Later, Mbeki moved over to work in the ANC's propaganda section. But he continued to attend RC meetings. Four months after his arrival in Lusaka, Mbeki travelled to Beichlingen to deliver a speech on behalf of the ANC's Executive Committee at the YSS summer school. This was a turning point in Mbeki's life as it was the first time he spoke on behalf of the ANC as opposed to the ANC Youth League.  In December 1972, Mbeki joined Tambo at Heathrow Airport to meet Mangosuthu Buthelezi to discuss mass resistance to apartheid. Mbeki is credited with facilitating the establishment of Inkatha - it was his responsibility to nurture the relationship between Buthelezi and the ANC. Mbeki was deployed to Botswana in 1973 to facilitate the development of an internal underground.  Mbeki's life took a significant turn on 23 November 1974 when he married Zanele Dlamini. The wedding ceremony took place at Farnham Castle, the residence of Zanele's sister Edith and her husband, Wilfred Grenville-Grey. Adelaide Tambo and Mendi Msimang stood in loco-parentis for Mbeki while Essop Pahad was Mbeki's best man. The wedding, according to ANC rules, had to be approved by the organisation - a rule that applied to all permanently deployed members of the ANC.

What was his mission in Lusaka?

Mbeki travelled to Beichlingen to deliver a speech on behalf of the ANC's Executive Committee at the YSS summer school.



Answer the question at the end by quoting:

Panic! at the Disco is an American rock band from Las Vegas, Nevada, formed in 2004 and featuring the current lineup of vocalist Brendon Urie, accompanied on tour by guitarist Kenneth Harris, drummer Dan Pawlovich, and bassist Nicole Row. Founded by childhood friends Ryan Ross, Spencer Smith, Brent Wilson and Urie, Panic! at the Disco recorded its first demos while its members were in high school. Shortly after, the band recorded and released its debut studio album, A Fever You Can't Sweat Out (2005).
On April 2, 2015, Smith announced that he had officially left the band. That same month, Urie revealed in an interview with Kerrang! that he was working on new material for the band's fifth studio album.  On April 20, 2015, Urie released "Hallelujah" as a single without any previous formal announcements. It debuted on the Billboard Hot 100 at No. 40, the band's second highest ever after "I Write Sins Not Tragedies". The band performed at the KROQ Weenie Roast on May 16, 2015. On September 1, 2015, another song from the fifth studio album, "Death of a Bachelor", premiered on an Apple Music broadcast hosted by Pete Wentz. The second single, "Victorious" was released at the end of the month. On October 22, 2015, through the band's official Facebook page, Urie announced the new album as Death of a Bachelor with a scheduled release date of January 15, 2016. It is the first album written and composed by Urie with a team of writers, as the status of Weekes changed from an official member to that of a touring member once again. Weekes' status was rumored during the promotion of Death of a Bachelor that he was no longer an official member, until it was confirmed by Weekes himself on October 24, 2015, via Twitter that he was "not contributing creatively anymore". The third single "Emperor's New Clothes" was released on the same day, along with the official music video. "LA Devotee" was released November 26 as a promotional single. On December 31, 2015, the band released "Don't Threaten Me with a Good Time".  The band co-headlined the Weezer & Panic! at the Disco Summer Tour 2016 with Weezer from June to August 2016. The band released a cover of Queen's "Bohemian Rhapsody" in August 2016, on the Suicide Squad soundtrack album.  On September 22, 2016, the band released the music video for "LA Devotee". With the release came the announcement of the Death of a Bachelor Tour in 2017. MisterWives and Saint Motel were announced as the opening acts. In a December 2016 interview, Urie said that he hoped to make a music video for every song on the album Death of a Bachelor.

what did he after he left
On April 20, 2015, Urie released "Hallelujah" as a single without any previous formal announcements.