The 'Kiss From A Rose' singer previously postponed shows in Canberra, Melbourne, Adelaide, Perth and Sydney in February in order to devote more time to the Australian version of The Voice.
He rescheduled several of those shows for April, but has now announced that he will have to pull out of stops in Perth and Canberra entirely.
"Due to further adjustments to Seal's hectic touring and filming while in Australia, we've had to make the difficult decision not to proceed with these two shows," Seal's spokesperson said in a statement.
The press release continued: "However, the remaining shows in Melbourne, Adelaide, Gold Coast and Sydney will definitely proceed as scheduled."
Seal serves as a coach on the Australian version of The Voice alongside Delta Goodrem, Keith Urban and Joel Madden.
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Watch Seal perform 'Kiss From a Rose' below: