June 25, 2015 7:43 AM EDT

Who dreamed the biggest dream?

Susan Boyle’s I Dreamed a Dream (2009), which sold more than 700,000 copies its first week, was the biggest debut album by any female solo artist in the SoundScan era

Who is America’s youngest female billionaire?

At 31, Elizabeth Holmes, the founder of blood-diagnostics company Theranos, is worth $4.6 billion

Who are we watching on YouTube?

Swedish gamer Felix Kjellberg’s YouTube channel, PewDiePie, has 37 million subscribers, the most of any user

Who has recorded the most?

Indian singer Asha Bhosle, 81, is the world’s most recorded artist, with about 11,000 solo, duet and chorus-backed songs since 1947

Who is leading the next generation of LGBT activists?

Fourteen-year-old transgender activist Jazz Jennings, whose TLC series debuts this summer, is the youngest person ever to be named to the Out 100 and the Advocate’s 40 Under 40 list

Who is the world’s most popular astrophysicist?

Neil deGrasse Tyson’s 3.7 million Twitter followers eclipse those of all other scientists

SOURCES: NIELSEN SOUNDSCAN; FORBES; YOUTUBE; GUINNESS WORLD RECORDS; OUT; THE ADVOCATE; TWITTER

This appears in the July 06, 2015 issue of TIME.

Contact us at letters@time.com.

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