FRIDAY CHART PREVIEW

Whew! TGIF, right, buddy? Let's take a look at what to expect at three key Mediabase charts next week. It's a glimpse of the future that doesn't involve our receding hairlines and achy knees, so we're ready to go there.

TOP 40
"Timber" by Mr 305/RCA's Pitbull f/Kesha remains at #1 for a third week. Katy Perry's "Dark Horse" (Capitol) extends its streak of 2000+ spin weeks and is still in the greatest-gainer group. Lava/Republic's Lorde continues to show strong growth and climbs up a couple of slots to #7. Black Magnetic/Epic's A Great Big World has another great week and arrives in the Top 10 with a solid spin increase. Warner Bros.' Jason Derulo looks to be the week's Greatest Gainer with "Talk Dirty" f/2Chainz and makes a very quick climb through the 20s. Columbia's Pharrell Williams has a huge week with "Happy" and is set to make the move to Top 20 next week. Charting this week will be Republic's Enrique Iglesias with "I'm a Freak" f/Pitbull, Columbia's Beyoncé with "Drunk In Love" f/Jay Z and "Lovesick" from 5280 Media's Camryn.

RHYTHMIC
Kid Ink's "Show Me" (RCA) will hold onto #1 again this week, but Columbia's Beyoncé looks set to inherit the spot with "Drunk In Love" f/Jay Z. Katy Perry "Dark Horse" (Capitol) and YG's "My Hitta" (CTE/Def Jam/IDJ) are also among the biggest gainers inside the Top 10. Jason Derulo's "Talk Dirty" on Warner Bros. looks like it will be the next to enter the Top 10 this week. Lava/Republic's Lorde takes a huge jump with "Team," as does Chris Brown with "Loyal" f/Lil Wayne (RCA). Pharrell Williams' "Happy" (Columbia) is looking like the most increased record.

ALTERNATIVE
Arctic Monkeys (Domino) will easily retain the #1 position for a third week with their big hit, "Do I Wanna Know?" The rest of the Top 10 remains the same. Inside the Top 20, Republic's Phantogram continues to impress; "Fall In Love" will move to #14 and be up around 100x. New records making impact include Epic's KONGOS, who should see an eye-popping 150x increase for the buzzing "Come With Me Now," and Bastille's "Bad Blood"(Virgin), which will quickly land in the Top 25. Mom + Pop's Wild Cub will debut impressively with "Thunder Clatter."

OK, buddy--now where's that cocktail you promised us?