The American singer-songwriter behind the 'Bad Blood' hit song - Taylor Swift, has reached an agreement about the trademark lawsuit filed against her by the leading manufacturer for custom promotional and private label apparel - Blue Sphere.

The Blue Sphere, which is a California-based company, asserted that the 25-year-old Taylor Swift had violated the terms of its existing trademark.

The clothing company Blue Sphere filed the lawsuit against the 'Shake It Off' singer Taylor Swift in May 2014, after Taylor Swift allegedly started the action of promoting and selling the clothing with the phrase "Lucky 13." Taylor Swift, the 'Blank Space' hitmaker, also collaborated with a greeting-card company, which move about a "Lucky 13" sweepstakes.

But Taylor Swift said in a written statement that she had "no knowledge related to the design, marketing, advertising, distribution and sale of the accused T-shirt."

Taylor Swift, who became the youngest songwriter ever hired by the Sony/ATV Music publishing house, claimed that she was being "harassed" by the clothing company Blue Sphere, while she was on a hectic schedule with her busy tour - as the Blue Sphere relentless looked into Taylor Swift's endorsement deals with companies like Coca-Cola Company, Toyota Motor Sales, Elizabeth Arden, Papa John's and Procter & Gamble.

Blue Sphere also demanded for photos and videos of Taylor Swift, in which Taylor Swift's breasts and buttocks were "partially visible," claiming that the singer was using her sex appeal to sell the products, while also affecting adversely their brand and target audience.

However, on Friday, the lawsuit filed by the clothing company Blue Sphere was settled and an agreement was reached involving both parties, which allowed Taylor Swift to avoid facing the process of giving a sworn statement on the matter at hand . Taylor Swift was represented by - J. Douglas Baldridge at Venable, while Blue Sphere was represented by Gary Rinkerman at Drinker Biddle & Reath.