 
<translate> Ozi dị mkpa iji zaa ajụjụ a dị n'elu bụ: "Saturday in the Park" bụ abụ nke Robert Lamm dere ma ndị otu Chicago dekọtara maka album 1972 ha Chicago V. Ya mere, azịza ikpeazụ bụ otu Chicago. <eng> The relevant information to answer the above question is: "Saturday in the Park" is a song written by Robert Lamm and recorded by the group Chicago for their 1972 album Chicago V.
So, the final answer is the group Chicago. 