Is it OK to get a haircut on sunday, because when Lag Baomer falls on Sunday you can get a haircut on Friday because it's not nice to Shabbat?

When Lag Baomer falls out on sunday, you can get a haircut on Friday for the honor of Shabbat, not because it’s not allowed on Sunday.

Is it OK to get a haircut on sunday, because when Lag Baomer falls on Sunday you can get a haircut on Friday because it’s not nice to Shabbat?