Meghan Trainor's 'All About That Bass' Reaches No. 1 on Billboard-Bye, Taylor Swift! | Entertainment Tonight arrow-left-mobilearrow leftarrow-right-mobilearrow rightGroup 7Gallery Icon Copy 2Video Play Button Copy 5Hamburger MenuInstagramTwitterYoutubeShare Button7C858890-6955-48EA-B871-66CE1E33590CVideo-Playbutton Copy Skip to main contentncG1vNJzZmivp6x7psDOp6OippVjsLC5jqasrKGTZH52fJhyapillZy1orq%2BramaoZ6kv6DAzqmqmJqZobmju8Crm5ivmam1oK3LpZaamp%2BqwaDAx5qrmJqRqMA%3D