Ready to get your Sirius XM on? 20 on 20 added Alicia Keys‘ “Girl on Fire” (RCA); Chris Wallace‘s “Remember When (Push Rewind)” (ThinkSay); “Wanted” by Hunter Hayes (Atlantic); “Thrift Shop” by Macklemore & Ryan Lewis (Macklemore/ADA): Neon Trees‘ “Lessons in Love” (IDJ); Sean Kingston‘s “Rum & Raybans” (Epic); and The Ready Set‘s “Give Me Your Hand” (Warner Bros.). New tracks on Alt Nation include “True Romance” by Citizens! (Kitsune); “From Nowhere” by Dan Croll (Raquet); Django Django‘s  “Default” (Domino); and “Dark Again” by Astralwerks/Capitol act Gold Fields. The Spectrum welcomed “How I Roll” by Charlie Mars (Rockingham Records) and The Wallflowers‘ “Love Is a Country” (Columbia). And Hip-Hop Nation rolled with A$AP Rocky f/Drake, 2 Chainz & Kendrick Lamar“F***in’ Problem” (A$AP Worldwide/Polo Grounds/RCA) and Big Sean‘s “Guap” (G.O.O.D./Def Jam/IDJ). All of the preceding adds were predicted with 99.756% accuracy by Nate Silver. [HitsDailyDouble]