This quote is expressing admiration for Lionel Richie and Madonna, two musicians who recently changed genre and ventured into country music. The speaker of the quote is pointing out that while some people might not like what they are doing, nobody should give them a hard time for it, because they should be able to do whatever they want in their music. Additionally, the quote is implying that ageism based criticism should be disregarded, as both of them are having success with their new music. The speaker also invites people who don’t like the music to simply not buy it.