He then asked the crowd to applaud the ODM leader who took the microphone and said 'Tupo site. Kata simu'
Earlier, Diamond had dropped a hint that he would be performing in Nairobi but he did not give much away.
The Jeje hitmaker had shared a video of himself boarding a private jet in the company of his daughter Latifah Dangote.
"Nairobi in a second... @princess_tiffah," he captioned the video.
It was Azimio's last rally ahead of the polls and they clearly wanted to make a statement by inviting some of the region's most respected artistes.
Kenya's very own FemiOne also took to the podium singing Tunaweza and her famous song Utawezana.
Gospel artiste Milka Omondi was also not left behind as she invited Odinga, Ida and other leaders on stage as the crowd waved in excitement.
Music has been an integral part of elections for the longest time and this year is no different as politicians have sought the best in the industry to woo voters in their favour.
Recently, Congolese songstress Mbilia Bel graced Azimio rallies in Nyeri and Kakamega.
During her performances, she drummed up support for Odinga and Karua, urging Kenyans to elect the duo on August 9, 2022.
Odinga also worked closely with Benga musician and instrumentalist Emmanuel Musindi in coming up with his official campaign song Lelo ni Lelo.
Lelo ni Lelo translates to 'leo ni leo' a Swahili phrase that means "today is the day" - which is a rallying call to action. The song was recorded in Karen and Kawangware.
"Kenya mpya inawezekana (a new Kenya is possible)," Raila says in the refrain as the band echoes "Leo ni Leo".
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Raila then ushers the second stanza of the composition with a heavy baritone tone "Lelo leo ni lelo" to which a crowd thunderously responds with animated ululation. He then does a refrain, mirroring Koffi Olomide's demeanour with a deep-throat rendition of a one-liner; "Na inawezekana".