Remove groups from a user with an exception

Matt_P_Standing I changed it a little bit and added the possibility for more usernames 

$usernames = "User01", "User02"
$groupdntoexclude = (Get-ADGroup -Identity "Group 1").DistinguishedName
foreach ($username in $usernames) {   
    foreach ($group in (Get-ADUser -Identity $username -properties MemberOf).MemberOf) {
        if ($group -ne $groupdntoexclude) {
            Write-Host ("Removing {0} membership from user {1}" -f $group, $username)
            Remove-ADGroupMember -Identity $group -Members $username -Confirm:$true
        }
    }
}