Taylor Swift just added another line to her resume:  She’s now the richest female musician in the world.     Taylor is worth an estimated $1.6 billion, which puts her ahead of Rihanna’s $1.4 billion.     Taylor is also the second-richest musician overall, behind Jay-Z.  But he’s got a pretty substantial lead.  He’s worth $2.5 billion.     Rihanna still keeps the title of richest female musician of ALL TIME, because she was once worth $1.77 billion.  But Taylor Swift might eclipse that once her Eras Tour is finished.