Jubilee rebel Alfred Keter will be best man for Johanna Ng'eno, another fierce KANU legislator from Emurua Dikir.
Ng'eno, 45, will be marrying officially on Saturday at Emurua Dikir secondary school.
After years of ridicule, Ng'eno will introduce formally Nayianoi Ntutu, a daughter to Livingston Ntutu as his wife.
Mr. Livingston Ntutu is brother to politicians Patrick Ntutu and Stephen Ntutu.
But Keter's presence in the wedding where he will play a major role could be the moment of occasion given his fierce criticism on DP William Ruto, who is expected to attend.
Also in the list of attendants is Gideon Moi, Raila Odinga and President Uhuru Kenyatta.
Recently, Keter flew to US where he said he would lead anti-Ruto campaigns in the diaspora, a move which angered the DP's loyalists.
Both Keter and Ng'eno have never hidden their support to Gideon Moi, who has also declared interest in 2022 elections.