Exhibit 99.1

CONFIDENTIAL DRAFT RELEASE

ICONIX BRAND GROUP REPORTS RECORD REVENUE AND EARNINGS FOR THE FIRST QUARTER 2013

NEW YORK, New York—April 24, 2013 – Iconix Brand Group, Inc. (NASDAQ: ICON) (“Iconix” or the “Company”), today announced financial results for the first quarter ended March 31, 2013.

Q1 2013 Results for Iconix Brand Group, Inc.:

Total revenue for the first quarter of 2013 was approximately $105.1 million, a 19% increase as compared to approximately $88.5 million in the first quarter of 2012. EBITDA attributable to Iconix for the first quarter was approximately $64.6 million, a 14% increase as compared to $56.8 million in the prior year quarter. Free cash flow attributable to Iconix for the first quarter was approximately $51.8 million, a 9% increase as compared to the prior year quarter of approximately $47.4 million. On a non-GAAP basis, as described in the tables below, net income attributable to Iconix was $36.2 million, a 13% increase as compared to the prior year quarter of approximately $31.9 million. Non-GAAP diluted EPS for the first quarter of 2013 increased 26% to $0.54 compared to $0.43 in the prior year quarter. GAAP net income attributable to Iconix for the first quarter of 2013 was approximately $34.2 million, a 24% increase as compared to $27.6 million in the prior year quarter and GAAP diluted EPS for the first quarter of 2013 increased 38% to $0.51 compared to $0.37 in the prior year quarter.

EBITDA, free cash flow, non-GAAP net income and non-GAAP diluted EPS are all non-GAAP metrics and reconciliation tables for each are attached to this press release.

Neil Cole, Chairman and CEO of Iconix Brand Group, Inc. commented, “With record results in the first quarter, 2013 is off to a strong start and we are on track to deliver over 20% revenue and EPS growth for the full year. We successfully completed three acquisitions in the past five months and with our current pipeline we believe there are additional opportunities, which would continue to enhance our portfolio. As we look ahead, we are also focused on continuing to build our portfolio of brands organically through our global platform, and we believe that with our free cash flow and strong balance sheet we will continue to create increased shareholder value.”

2013 Guidance for Iconix Brand Group, Inc.:

This guidance relates to the Company’s existing portfolio of brands and does not include any additional acquisitions.

See reconciliation tables below for non-GAAP metrics. These non-GAAP metrics may be inconsistent with similar measures presented by other companies and should only be used in conjunction with our results reported according to U.S. GAAP. Any financial measure other than those prepared in accordance with U.S. GAAP should not be considered a substitute for, or superior to, measures of financial performance prepared in accordance with U.S. GAAP.

About Iconix Brand Group, Inc.

Iconix Brand Group, Inc. owns, licenses and markets a growing portfolio of consumer brands including: CANDIE’S (R), BONGO (R), BADGLEY MISCHKA (R), JOE BOXER (R), RAMPAGE (R), MUDD (R), MOSSIMO (R), LONDON FOG (R), OCEAN PACIFIC (R), DANSKIN (R), ROCAWEAR (R), CANNON (R), ROYAL VELVET (R), FIELDCREST (R), CHARISMA (R), STARTER (R), WAVERLY (R), ZOO YORK (R), ED HARDY (R), SHARPER IMAGE (R), UMBRO (R) and LEE COOPER (R). In addition, Iconix owns interests in the ARTFUL DODGER (R), ECKO (R), MARC ECKO (R), MATERIAL GIRL (R), PEANUTS (R), TRUTH OR DARE (R), BILLIONAIRE BOYS CLUB (R), ICE CREAM (R), MODERN AMUSEMENT (R), and BUFFALO (R) brands. The Company licenses its brands to a network of leading retailers and manufacturers that touch every major segment of retail distribution from the luxury market to the mass market in both the U.S. and worldwide. Through its in-house business development, merchandising, advertising and public relations departments Iconix manages its brands to drive greater consumer awareness and equity.

Safe Harbor Statement under the Private Securities Litigation Reform Act of 1995. The statements that are not historical facts contained in this press release are forward-looking statements that involve a number of known and unknown risks, uncertainties and other factors, all of which are difficult or impossible to predict and many of which are beyond the control of the Company, which may cause the actual results, performance or achievements of the Company to be materially different from any future results, performance or achievements expressed or implied by such forward looking statements. Such factors include, but are not limited to, uncertainty

regarding the results of the Company’s acquisition of additional licenses, continued market acceptance of current products and the ability to successfully develop and market new products particularly in light of rapidly changing fashion trends, the impact of supply and manufacturing constraints or difficulties relating to the Company’s licensees’ dependence on foreign manufacturers and suppliers, uncertainties relating to customer plans and commitments, the ability of licensees to successfully market and sell branded products, competition, uncertainties relating to economic conditions in the markets in which the Company operates, the ability to hire and retain key personnel, the ability to obtain capital if required, the risks of litigation and regulatory proceedings, the risks of uncertainty of trademark protection, the uncertainty of marketing and licensing acquired trademarks and other risks detailed in the Company’s SEC filings. The words “believe”, “anticipate”, “estimate”, “expect”, “confident”, “continue”, “will”, “project”, “provide” “guidance” and similar expressions identify forward-looking statements. Readers are cautioned not to place undue reliance on these forward looking statements, which speak only as of the date the statement was made. All forward-looking statements are qualified by these cautionary statements and apply only as of the date they are made. The Company undertakes no obligation to update any forward-looking statement, whether as a result of new information, future events or otherwise.

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Contact Information:

Jaime Sheinheit

Investor Relations

Iconix Brand Group

212.730.0030

Unaudited Condensed Consolidated Income Statements

(in thousands, except earnings per share data)

Selected Balance Sheet Items:

The following tables detail unaudited reconciliations from non-GAAP amounts to U.S. GAAP and include reconciliations related to ASC Topic 470, accounting for convertible debt.

Note: All items in the following reconciliation tables are attributable to Iconix Brand Group, Inc. and exclude results related to non-controlling interests.

(in thousands, except per share data)

(Unaudited)