How rare an honor is it for a rookie female artist to crown each chart out-of-the-gate? Trainor is just the lucky 13th woman to begin with a No. 1 album and song in the more than 56 years that the Billboard 200 and Hot 100 have co-existed.
Upon Trainor's latest achievement, here's an updated look at the select female artists to send their first chart entries (credited with a lead billing) on each tally to No. 1:
The Singing Nun (1963)
The Singing Nun, "Dominique"
Tiffany, "I Think We're Alone Now"
Mariah Carey (1990-91)
Mariah Carey, "Vision of Love"
Lauryn Hill (1998)
The Miseducation of Lauryn Hill, "Doo Wop (That Thing)"
Britney Spears (1999)
...Baby One More Time, "...Baby One More Time"
Christina Aguilera (1999)
Christina Aguilera, "Genie in a Bottle"
Alicia Keys (2001)
Songs in A Minor, "Fallin' "
Kelly Clarkson (2002-03)
Thankful, "A Moment Like This"
Dangerously in Love, "Crazy in Love"
Leona Lewis (2008)
Spirit, "Bleeding Love"
Animal, "TiK ToK"
Meghan Trainor (2014-15)
Title, "All About That Bass"
Even more impressively, Trainor has added a second big Hot 100 hit from Title, as "Lips Are Movin" has reached No. 4. Of the 13 leading ladies above, how many have followed their debut No. 1 single directly with a second top five hit? Trainor is just the fifth, after Tiffany, Carey, Aguilera and Beyonce.
"In the year that I have known and worked with Meghan, I've been consistently amazed [by] the depth of her talent and the incredible craft that she displays in her songwriting and effervescent performances," says Epic chairman and CEO Antonio "L.A." Reid, who signed her to the label nearly a year ago after she auditioned by singing and playing ukulele (as she did last week on NBC's The Tonight Show Starring Jimmy Fallon).
"Meghan has tapped into a positive, infectious groove that cuts across just about every genre that exists in music today."