In contrast with the first few months of 2015, when it seemed like our Top Tracks lists were just the same Kanye and Drake tracks rising and falling with each ensuing week, the past few editions have been utter chaos, with the #1 spot changing every week. Staying power is proving difficult to achieve in an increasingly crowded summer playing field-- Beyoncé and Birdman's chart-toppers from two and one week ago, respectively, are nowhere to be found this week, although a few of the lower-ranking tracks stuck it out. 

The big winner this week is clearly Chance The Rapper, who notched to spots with tracks from his excellent Coloring Book mixtape. Great music and big guests are always liable to get you here, but Chance could hold these spots down on all his own too. Elsewhere, new tracks from DJ Drama, O.T. Genasis, Desiigner and ScHoolboy Q make big debuts as anticipation for their respective projects heightens. 

10. DJ Drama Feat. Chris Brown, Skeme & LyQuin - Wishing

Venerated ATL mainstay DJ Drama is readying a sequel to 2012's Quality Street Music, and last week he loosed a first single featuring the odd combo of VA's Breezy, LA's Skeme, and Maryland newcomer LyQuin. Luckily, it payed off for Drama, as "Waiting" makes its debut at #10. 

9. 50 Cent Feat. Chris Brown - No Romeo No Juliet

Fif's first taste of Kanan: Reloaded made a big splash last week with its #5 debut, and although it slips down four spots this week, it should still be considered a pretty big coup for the recently-over-the-hill star. "No Romeo No Juliet" is only one of four repeat contenders on this week's list, and the second consecutive track featuring Chris Brown, whose own new single "Grass Ain't Greener" didn't stick around for a second week after hitting #9 last time.

8. O.T. Genasis Feat. Young Thug & Kevin Gates - Cut It (Remix)

It's been a while since "CoCo" was a big deal, so long that many seemed to have written off O.T. as a one-hit wonder. But just like that, he's back with another heater. "Cut It" was originally released in October with a Young Dolph feature, but now that's it's taking off on the radio, Young Genasis has secured features from two of the South's more vibrant characters-- Young Thug and Kevin Gates-- for a remix. This souped-up version of "Cut It" debuts at #8.

7. Fabolous - Panda (Remix)

Loso seems to have succeeded in revamping the decidedly Southern "Panda" to appeal to New Yorkers who don't think Desiigner has enough #BARS to warrant repeat listens. In 93 seconds, he probably raps more words than his fellow Brooklynite has in his whole career thus far, and makes some punchlines to boot. This "Panda" remix falls from #2 to #7 in its second week.

6. Chance The Rapper Feat. Future - Smoke Break

One of the couple distinctly Southern-and-trap flavored tracks from Coloring Book, "Smoke Break" finds Chance The Rapper and Future inhabiting the same song much more seamlessly than I'd ever expected was possible. It may not have as much hit potential as the mixtape's other song on this list, but it is decidedly a babymaking jam, which is just a few spots down from "windows-down banger" in the hierarchy of tracks with hit potential. "Smoke Break" debuts at #6.

5. Desiigner Feat. Boyd - Moon People

The "Panda" follow-up we've all been waiting for is here, and it's.... just a user-made remix of audio from Desiigner's Tim Westwood freestyle. Sorry y'all, false alarm here, but people were still so curious to hear just how much this would sound like Future that the fake "Moon People" debuts all the way up at #5.

4. Young Thug Feat. Lil Uzi Vert - Dope

The last time we ran a Top Tracks list that didn't have this track on it, it was the middle of March and Slime Season 3 wasn't out yet. "Dope" has been a major mystery of a hit-- now in its ninth week on the charts, it's the track with the longest tenure I've ever seen on here. It falls from a peak of #3 last week, but don't worry, it'll almost definitely be back here next week.

3. Tory Lanez - For Real 

Tory's having himself a big year, with "Say It" still getting radio play across North America, a tour with A$AP Ferg underway, and some fire new Fargo Fridays joints hitting our charts on a consistent basis. "For Real" seems to have the most staying power, outlasting "Unforgetful," which also made the cut last week, and rising three spots in its second week out. 

2. ScHoolboy Q Feat. Kanye West - THat Part

How badly do people want new ScHoolboy Q? So badly that they'll go out of their ways to listen to a 15-second snippet more than most other full songs that dropped last week. This "THat Part" clip doesn't even have Kanye West making any sound at all, but you can bet his name added considerably to this one's popularity. It makes its debut at #2. 

1. Chance The Rapper Feat. 2 Chainz & Lil Wayne - No Problem

We already got an album's worth of 2 Chainz and Lil Wayne collabs this year, but "No Problem" is pretty much better than anything on Collegrove. Chance proved himself a master of putting the right artists on the right songs on Coloring Book, and that holds true here, where the most mistreated signee in music gets to air out his frustrations on an anthem about label politics. What's more, it's undeniably catchy. "No Problem," which makes its debut at #1, is sure to be a summertime hit.