Wiz Khalifa and many of his friends will make for one of Merriweather’s highlights this summer. (Bill O'Leary/The Washington Post)

- Britney Spears had a short stay at the top of the Billboard charts. Her “Femme Fatale” dropped to No. 2, displaced by Adele’s “21,” which returned to the top spot and became the first album to sell a million copies in 2011.

- And in case you missed it down below, Wolf Trap announced its 40th anniversary concert schedule today.

Clicky shuffle: Your random song for Thursday morning:

- Creedence Clearwater Revival, “Ramble Tamble”