She has been dressing much older than her age for quite some time now.

And as of this month Miley Cyrus will be able to wear all the see-through, leather and low-cut outfits she likes without causing a storm of controversy.

The soon-to-be 18-year-old, who reaches the milestone on November 23, was still raising eyebrows last night though when she performed in a sheer white dress that put her underwear on full display.

Racy: Miley Cyrus performed on German TV show Wetten, dass…? last night in a see-through white dress

The revealing dress, made of white tulle material was completely see-through except for a design that slightly covered her stomach and chest.

The Hannah Montana star wore flesh-coloured body stocking beneath but her underwear was still obvious as she performed her new single Who Owns My Heart on German TV show Wetten, dass…?

To add to the risqué performance, Miley gyrated through a provocative routine with her back-up dancers, before settling in for a chat alongside actor Denzel Washington, appearing to promote new film Unstoppable.

The popstar has returned to Madrid today after her brief stint in Germany, where she will perform at the EMA Awards.

Risqué: The teen performed her new single Who Owns My Heart with a seductive dance routine

Miley has remained tight-lipped about her performance, but hinted yesterday that it will feature an ‘Angels and Demons’ theme.

She told MTV News at rehearsals in Madrid on Friday ‘It’s [about the idea] that during this world, you’re always going to have temptation. Basically that’s kind of the whole vibe.’

The Party in the USA singer has been in the Spanish capital ahead of the EMA Awards, and held a fan event on Friday before heading to a bar with friends in the evening.

She was criticised in the US, where the legal drinking age is 21, when she was spotted drinking a Corona beer at the bar, but she was not breaking any laws as the legal drinking age of 18 is a somewhat relaxed rule in Spain.

Stress: Miley is dealing with the split of her parents Billy Ray and Tish after allegations Tish cheated with Bret Michaels

Top secret: Miley will perform at the EMA Awards in Madrid today, she has hinted the performance will have an ‘Angels and Demons’ theme

Miley also revealed her desire to spend quality time with her family for her milestone birthday.

Her parents Billy Ray and Tish Cyrus are currently going through a very public split, with allegations emerging this week that Tish had an affair with Bret Michaels.

Tellingly, Miley said of her birthday plans: ‘I’m not going to go crazy. Just have a fun party and then maybe take a vacation with my family … because that would be really cool. I think we need time to all be together.’

She added: ‘That would be rad if we could all go to the beach or something. [I have] no idea [where we’re going]; somewhere near water. I’m a water baby – I have to be near the water and I love doing scuba and going out and being on a boat.’

Catch up: The popstar chatted to actor Denzel Washington during the taping, who was there to promote new film Unstoppable

On top of her parents’ separation, Miley also appears to be ‘off’ again with on/of boyfriend Liam Hemsworth.

Australian Liam, who met Miley in June 2009 on the set of their film The Last Song, has been enjoying the female attention in his home country at the Melbourne Cup races this week.

The pair dated throughout filming but ended their relationship in August. They appeared to have rekindled the romance in September but have been spending an increasing amount of time apart.

A source tells People magazine: ‘Their on-and-off-again relationship is currently off. But you never know with Miley and Liam. They could be back on at some point.’

Adds another source says: ‘There was no drama. The relationship just ran its course. They were good friends first and remain friends.’