The Tony winner added, \"But I'll be cheering you on in my heart, Max, and to everyone, my whole cast of 'The Music Man,' I hate not being there, but I'll be back as soon as I can.\"

Jackman also noted that while Broadway continues to deal with COVID-19, it's brought to light the value of understudies like Clayton.

\"I've said it before, and will say it a million times more ... Maxi and all the standbys, swings and understudies around the world, you are the true heroes of theater,\" he wrote. \"You give life to the saying 'the show must go on.'\"

Jackman will miss performances starting Tuesday and will return to the Winter Garden Theatre on June 22, according to \"The Music Man\" Twitter account.

To the understudy, the message added, \"Max, you better grab your Harold Hill suitcase and get on the next train to River City!\"

In December 2021, Jackman, then subsequently his co-star Sutton Foster, missed performances because of the virus.

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