601 Lexington Avenue   New York, New York 10022   (212) 446-4800   www.kirkland.com   Facsimile:   (212) 446-4900      Beijing       Chicago      Hong Kong       Houston      London       Los Angeles       Munich      Palo Alto       San Francisco      Shanghai       Washington, D.C.      Exhibit 5.1                      June 30, 2015   Townsquare Media, Inc.   240 Greenwich Avenue   Greenwich, CT 06830           Ladies and Gentlemen:   We are acting as special counsel to Townsquare Media, Inc., a Delaware corporation (the   “Company”), in connection with the filing by the Company of a Registration Statement on Form   S-8 (the “Registration Statement”) under the Securities Act of 1933, as amended (the “Act”), with   the Securities and Exchange Commission (the “Commission”) covering the registration of an   aggregate of 20,703,234 shares of the Company’s Class A common stock, $0.01 par value per   share (the “Class A Common Stock”), and Class B common stock, $0.01 par value per share (the   “Class B Common Stock” and, together with the Class A Common Stock, the “Shares”) consisting   of (i) 4,827,194 Shares that are currently authorized for issuance upon the exercise of awards that   have not yet been granted pursuant to the Townsquare Media 2014 Omnibus Incentive Plan (the   “Plan”), (ii) 8,703,234 shares of Class A Common Stock that are issuable upon conversion of   Class B Common Stock underlying outstanding stock options issued pursuant to the Plan and   awards that are authorized but not yet issued under the Plan, (iii) 3,296,766 shares of Class A   Common Stock issuable upon the exercise of stock options currently outstanding under the Plan   and (iv) 3,876,040 shares of Class B Common Stock issuable upon the exercise of stock options   currently outstanding under the Plan (collectively, the “Plan Shares”).   For purposes of this letter, we have examined such documents, records, certificates,   resolutions and other instruments deemed necessary as a basis for this opinion, and we have   assumed the authenticity of all documents submitted to us as originals, the conformity to the   originals of all documents submitted to us as copies and the authenticity of the originals of all   documents submitted to us as copies.      
 
 
      June 30, 2015   Page 2             Based upon and subject to the foregoing qualifications, assumptions and limitations and the   further limitations set forth below, we advise you that the Plan Shares are duly authorized and   when (i) the Registration Statement related to the Plan Shares becomes effective under the Act and   (ii) the Plan Shares have been duly issued pursuant to and in accordance with the terms and   conditions of the Plan and the Company’s Amended and Restated Certificate of Incorporation and   Amended and Restated Bylaws, the Plan Shares will be validly issued, fully paid and   non-assessable.    Our opinions expressed above are subject to the qualifications that we express no opinion   as to the applicability of, compliance with, or effect of any laws except the General Corporation   Law of the State of Delaware.    We have relied without independent investigation upon, among other things, an assurance   from the Company that the number of shares which the Company is authorized to issue in its   Amended and Restated Certificate of Incorporation exceeds the number of shares outstanding and   the number of shares which the Company is obligated to issue (or had otherwise reserved for   issuance) for any purposes other than issuances in connection with the Plan by at least the number   of Plan Shares which may be issued in connection with the Plan and we have assumed that such   condition will remain true at all future times relevant to this opinion. We have assumed that the   Company will cause certificates, if any, representing the Plan Shares issued in the future to be   properly executed and delivered and will take all other actions appropriate for the issuances of   such Plan Shares.   We hereby consent to the filing of this opinion with the Commission as Exhibit 5.1 to the   Registration Statement. In giving this consent, we do not thereby admit that we are in the category   of persons whose consent is required under Section 7 of the Act or the rules and regulations of the   Commission.    We do not find it necessary for the purposes of this opinion, and accordingly we do not   purport to cover herein, the application of the securities or “Blue Sky” laws of the various states to   the issuance and sale of the Plan Shares.    This opinion is limited to the specific issues addressed herein, and no opinion may be   inferred or implied beyond that expressly stated herein. We assume no obligation to revise or   supplement this opinion should the General Corporation Law of the State of Delaware be changed   by legislative action, judicial decision or otherwise.    This opinion is furnished to you in connection with the filing of the Registration Statement,   and is not to be used, circulated, quoted or otherwise relied upon for any other purposes.